diff --git a/configs/cell.json b/configs/cell.json
index c74dc45ba4..30eb4729f6 100644
--- a/configs/cell.json
+++ b/configs/cell.json
@@ -356,6 +356,7 @@
 			"word/Editor/GlossaryDocumentChanges.js",
 			"word/Editor/GraphicObjects/WrapManager.js",
 			"word/Editor/Common.js",
+			"word/Editor/sections/document-sections.js",
 			"word/Math/NamesOfLiterals.js",
 			"word/Math/LaTeXParser.js",
 			"word/Math/UnicodeParser.js",
diff --git a/configs/slide.json b/configs/slide.json
index 5f9f29e0b2..0a64df0300 100644
--- a/configs/slide.json
+++ b/configs/slide.json
@@ -197,7 +197,9 @@
 			"word/Editor/Common.js",
 			"word/Editor/Sections.js",
 			"word/Editor/SectionsChanges.js",
-
+			
+			"word/Editor/sections/document-sections.js",
+			
 			"word/Drawing/Graphics.js",
 			"word/Drawing/ShapeDrawer.js",
 			"word/Drawing/buttons.js",
diff --git a/configs/visio.json b/configs/visio.json
index 33bda6f114..08dcab8e62 100644
--- a/configs/visio.json
+++ b/configs/visio.json
@@ -181,7 +181,9 @@
 			"word/Editor/Common.js",
 			"word/Editor/Sections.js",
 			"word/Editor/SectionsChanges.js",
-
+			
+			"word/Editor/sections/document-sections.js",
+			
 			"word/Drawing/Graphics.js",
 			"word/Drawing/ShapeDrawer.js",
 			"word/Drawing/buttons.js",
diff --git a/configs/word.json b/configs/word.json
index ef1727df28..1f08bcecf2 100644
--- a/configs/word.json
+++ b/configs/word.json
@@ -335,7 +335,9 @@
 			"word/Editor/custom-xml/custom-xml-manager.js",
 			"word/Editor/custom-xml/data-binding.js",
 			"word/Editor/Merge.js",
-
+			
+			"word/Editor/sections/document-sections.js",
+			
 			"word/Drawing/Graphics.js",
 			"word/Drawing/ShapeDrawer.js",
 			"word/Drawing/buttons.js",
diff --git a/tests/word/merge-documents/binaryTestDocuments.js b/tests/word/merge-documents/binaryTestDocuments.js
index 01cfd2e4a4..41e048abfa 100644
--- a/tests/word/merge-documents/binaryTestDocuments.js
+++ b/tests/word/merge-documents/binaryTestDocuments.js
@@ -296,7 +296,7 @@ CMathBase.prototype.getTestObject = function (arrParentContent)
 		oRun.getTestObject(oContentObject.content);
 	});
 }
-CDocumentSectionsInfo.prototype.getTestObject = function (arrParentContent)
+AscWord.DocumentSections.prototype.getTestObject = function (arrParentContent)
 {
 	const arrHeaders = this.GetAllHdrFtrs();
 	for (let index = 0, count = arrHeaders.length; index < count; ++index)
diff --git a/word/Editor/Document.js b/word/Editor/Document.js
index 3e4b257e15..ebcf21606b 100644
--- a/word/Editor/Document.js
+++ b/word/Editor/Document.js
@@ -1868,7 +1868,7 @@ function CDocument(DrawingDocument, isMainLogicDocument)
 
     // Сначала настраиваем размеры страницы и поля
     this.SectPr = new CSectionPr(this);
-    this.SectionsInfo = new CDocumentSectionsInfo();
+    this.SectionsInfo = new AscWord.DocumentSections(this);
 
 	// Режим рецензирования
 	this.TrackRevisions = null; // Локальный флаг рецензирования, который перекрывает флаг Settings.TrackRevisions, если сам не null
@@ -28472,781 +28472,6 @@ function CDocumentSelectionState()
     this.Data      = {}; // Объект с текущей позицией
 }
 
-function CDocumentSectionsInfo()
-{
-    this.Elements = [];
-}
-
-CDocumentSectionsInfo.prototype =
-{
-    Add : function( SectPr, Index )
-    {
-        this.Elements.push( new CDocumentSectionsInfoElement( SectPr, Index ) );
-    },
-
-	GetSectionsCount : function()
-    {
-        return this.Elements.length;
-    },
-
-    Clear : function()
-    {
-        this.Elements.length = 0;
-    },
-
-    Find_ByHdrFtr : function(HdrFtr)
-    {
-		if (!HdrFtr)
-			return -1;
-		
-        var Count = this.Elements.length;
-        for ( var Index = 0; Index < Count; Index++ )
-        {
-            var SectPr = this.Elements[Index].SectPr;
-
-            if ( HdrFtr === SectPr.Get_Header_First() || HdrFtr === SectPr.Get_Header_Default() || HdrFtr === SectPr.Get_Header_Even() ||
-                 HdrFtr === SectPr.Get_Footer_First() || HdrFtr === SectPr.Get_Footer_Default() || HdrFtr === SectPr.Get_Footer_Even() )
-                    return Index;
-        }
-
-        return -1;
-    },
-
-    Reset_HdrFtrRecalculateCache : function()
-    {
-        var Count = this.Elements.length;
-        for ( var Index = 0; Index < Count; Index++ )
-        {
-            var SectPr = this.Elements[Index].SectPr;
-
-            if ( null != SectPr.HeaderFirst )
-                SectPr.HeaderFirst.Reset_RecalculateCache();
-
-            if ( null != SectPr.HeaderDefault )
-                SectPr.HeaderDefault.Reset_RecalculateCache();
-
-            if ( null != SectPr.HeaderEven )
-                SectPr.HeaderEven.Reset_RecalculateCache();
-
-            if ( null != SectPr.FooterFirst )
-                SectPr.FooterFirst.Reset_RecalculateCache();
-
-            if ( null != SectPr.FooterDefault )
-                SectPr.FooterDefault.Reset_RecalculateCache();
-
-            if ( null != SectPr.FooterEven )
-                SectPr.FooterEven.Reset_RecalculateCache();
-        }
-    },
-
-    GetAllParagraphs : function(Props, ParaArray)
-    {
-        var Count = this.Elements.length;
-        for ( var Index = 0; Index < Count; Index++ )
-        {
-            var SectPr = this.Elements[Index].SectPr;
-
-            if ( null != SectPr.HeaderFirst )
-                SectPr.HeaderFirst.GetAllParagraphs(Props, ParaArray);
-
-            if ( null != SectPr.HeaderDefault )
-                SectPr.HeaderDefault.GetAllParagraphs(Props, ParaArray);
-
-            if ( null != SectPr.HeaderEven )
-                SectPr.HeaderEven.GetAllParagraphs(Props, ParaArray);
-
-            if ( null != SectPr.FooterFirst )
-                SectPr.FooterFirst.GetAllParagraphs(Props, ParaArray);
-
-            if ( null != SectPr.FooterDefault )
-                SectPr.FooterDefault.GetAllParagraphs(Props, ParaArray);
-
-            if ( null != SectPr.FooterEven )
-                SectPr.FooterEven.GetAllParagraphs(Props, ParaArray);
-        }
-    },
-
-	GetAllTables : function(oProps, arrTables)
-	{
-		var Count = this.Elements.length;
-		for (var Index = 0; Index < Count; Index++)
-		{
-			var SectPr = this.Elements[Index].SectPr;
-
-			if (null != SectPr.HeaderFirst)
-				SectPr.HeaderFirst.GetAllTables(oProps, arrTables);
-
-			if (null != SectPr.HeaderDefault)
-				SectPr.HeaderDefault.GetAllTables(oProps, arrTables);
-
-			if (null != SectPr.HeaderEven)
-				SectPr.HeaderEven.GetAllTables(oProps, arrTables);
-
-			if (null != SectPr.FooterFirst)
-				SectPr.FooterFirst.GetAllTables(oProps, arrTables);
-
-			if (null != SectPr.FooterDefault)
-				SectPr.FooterDefault.GetAllTables(oProps, arrTables);
-
-			if (null != SectPr.FooterEven)
-				SectPr.FooterEven.GetAllTables(oProps, arrTables);
-		}
-	},
-
-	GetAllDrawingObjects : function(arrDrawings)
-    {
-        for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
-        {
-            var SectPr = this.Elements[nIndex].SectPr;
-
-            if (null != SectPr.HeaderFirst)
-                SectPr.HeaderFirst.GetAllDrawingObjects(arrDrawings);
-
-            if (null != SectPr.HeaderDefault)
-                SectPr.HeaderDefault.GetAllDrawingObjects(arrDrawings);
-
-            if (null != SectPr.HeaderEven)
-                SectPr.HeaderEven.GetAllDrawingObjects(arrDrawings);
-
-            if (null != SectPr.FooterFirst)
-                SectPr.FooterFirst.GetAllDrawingObjects(arrDrawings);
-
-            if (null != SectPr.FooterDefault)
-                SectPr.FooterDefault.GetAllDrawingObjects(arrDrawings);
-
-            if (null != SectPr.FooterEven)
-                SectPr.FooterEven.GetAllDrawingObjects(arrDrawings);
-        }
-	},
-	
-	UpdateBookmarks : function(oBookmarkManager)
-	{
-        for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
-        {
-            var SectPr = this.Elements[nIndex].SectPr;
-
-            if (null != SectPr.HeaderFirst)
-                SectPr.HeaderFirst.UpdateBookmarks(oBookmarkManager);
-
-            if (null != SectPr.HeaderDefault)
-                SectPr.HeaderDefault.UpdateBookmarks(oBookmarkManager);
-
-            if (null != SectPr.HeaderEven)
-                SectPr.HeaderEven.UpdateBookmarks(oBookmarkManager);
-
-            if (null != SectPr.FooterFirst)
-                SectPr.FooterFirst.UpdateBookmarks(oBookmarkManager);
-
-            if (null != SectPr.FooterDefault)
-                SectPr.FooterDefault.UpdateBookmarks(oBookmarkManager);
-
-            if (null != SectPr.FooterEven)
-                SectPr.FooterEven.UpdateBookmarks(oBookmarkManager);
-        }
-	},
-
-    Document_CreateFontMap : function(FontMap)
-    {
-        var Count = this.Elements.length;
-        for ( var Index = 0; Index < Count; Index++ )
-        {
-            var SectPr = this.Elements[Index].SectPr;
-
-            if ( null != SectPr.HeaderFirst )
-                SectPr.HeaderFirst.Document_CreateFontMap(FontMap);
-
-            if ( null != SectPr.HeaderDefault )
-                SectPr.HeaderDefault.Document_CreateFontMap(FontMap);
-
-            if ( null != SectPr.HeaderEven )
-                SectPr.HeaderEven.Document_CreateFontMap(FontMap);
-
-            if ( null != SectPr.FooterFirst )
-                SectPr.FooterFirst.Document_CreateFontMap(FontMap);
-
-            if ( null != SectPr.FooterDefault )
-                SectPr.FooterDefault.Document_CreateFontMap(FontMap);
-
-            if ( null != SectPr.FooterEven )
-                SectPr.FooterEven.Document_CreateFontMap(FontMap);
-        }
-    },
-
-    Document_CreateFontCharMap : function(FontCharMap)
-    {
-        var Count = this.Elements.length;
-        for ( var Index = 0; Index < Count; Index++ )
-        {
-            var SectPr = this.Elements[Index].SectPr;
-
-            if ( null != SectPr.HeaderFirst )
-                SectPr.HeaderFirst.Document_CreateFontCharMap(FontCharMap);
-
-            if ( null != SectPr.HeaderDefault )
-                SectPr.HeaderDefault.Document_CreateFontCharMap(FontCharMap);
-
-            if ( null != SectPr.HeaderEven )
-                SectPr.HeaderEven.Document_CreateFontCharMap(FontCharMap);
-
-            if ( null != SectPr.FooterFirst )
-                SectPr.FooterFirst.Document_CreateFontCharMap(FontCharMap);
-
-            if ( null != SectPr.FooterDefault )
-                SectPr.FooterDefault.Document_CreateFontCharMap(FontCharMap);
-
-            if ( null != SectPr.FooterEven )
-                SectPr.FooterEven.Document_CreateFontCharMap(FontCharMap);
-        }
-    },
-
-    Document_Get_AllFontNames : function ( AllFonts )
-    {
-        var Count = this.Elements.length;
-        for ( var Index = 0; Index < Count; Index++ )
-        {
-            var SectPr = this.Elements[Index].SectPr;
-
-            if ( null != SectPr.HeaderFirst )
-                SectPr.HeaderFirst.Document_Get_AllFontNames(AllFonts);
-
-            if ( null != SectPr.HeaderDefault )
-                SectPr.HeaderDefault.Document_Get_AllFontNames(AllFonts);
-
-            if ( null != SectPr.HeaderEven )
-                SectPr.HeaderEven.Document_Get_AllFontNames(AllFonts);
-
-            if ( null != SectPr.FooterFirst )
-                SectPr.FooterFirst.Document_Get_AllFontNames(AllFonts);
-
-            if ( null != SectPr.FooterDefault )
-                SectPr.FooterDefault.Document_Get_AllFontNames(AllFonts);
-
-            if ( null != SectPr.FooterEven )
-                SectPr.FooterEven.Document_Get_AllFontNames(AllFonts);
-        }
-    },
-
-    Get_Index : function(Index)
-    {
-        var Count = this.Elements.length;
-
-        for ( var Pos = 0; Pos < Count; Pos++ )
-        {
-            if ( Index <= this.Elements[Pos].Index )
-                return Pos;
-        }
-
-        // Последний элемент здесь это всегда конечная секция документа
-        return (Count - 1);
-    },
-
-    Get_Count : function()
-    {
-        return this.Elements.length;
-    },
-
-    Get_SectPr : function(Index)
-    {
-    	return this.GetByContentPos(Index);
-    },
-
-    Get_SectPr2 : function(Index)
-    {
-        return this.Elements[Index];
-    },
-
-    Find : function(SectPr)
-    {
-        var Count = this.Elements.length;
-        for ( var Index = 0; Index < Count; Index++ )
-        {
-            var Element = this.Elements[Index];
-            if ( Element.SectPr === SectPr )
-                return Index;
-        }
-
-        return -1;
-    },
-
-    Update_OnAdd : function(Pos, Items)
-    {
-        var Count = Items.length;
-        var Len = this.Elements.length;
-
-        // Сначала обновим старые метки
-        for (var Index = 0; Index < Len; Index++)
-        {
-            if ( this.Elements[Index].Index >= Pos )
-                this.Elements[Index].Index += Count;
-        }
-
-        // Если среди новых элементов были параграфы с настройками секции, тогда добавим их здесь
-        for (var Index = 0; Index < Count; Index++ )
-        {
-            var Item = Items[Index];
-            var SectPr = ( type_Paragraph === Item.GetType() ? Item.Get_SectionPr() : undefined );
-
-            if ( undefined !== SectPr )
-            {
-                var TempPos = 0;
-                for ( ; TempPos < Len; TempPos++ )
-                {
-                    if ( Pos + Index <= this.Elements[TempPos].Index )
-                        break;
-                }
-
-                this.Elements.splice( TempPos, 0, new CDocumentSectionsInfoElement( SectPr, Pos + Index ) );
-                Len++;
-            }
-        }
-    },
-
-    Update_OnRemove : function(Pos, Count, bCheckHdrFtr)
-    {
-        var Len = this.Elements.length;
-
-        for (var Index = 0; Index < Len; Index++)
-        {
-            var CurPos = this.Elements[Index].Index;
-
-            if (CurPos >= Pos && CurPos < Pos + Count)
-            {
-                // Копируем поведение Word: Если у следующей секции не задан вообще ни один колонтитул,
-                // тогда копируем ссылки на колонтитулы из удаляемой секции. Если задан хоть один колонтитул,
-                // тогда этого не делаем.
-                if (true === bCheckHdrFtr && Index < Len - 1)
-                {
-                    var CurrSectPr = this.Elements[Index].SectPr;
-                    var NextSectPr = this.Elements[Index + 1].SectPr;
-                    if (true === NextSectPr.IsAllHdrFtrNull() && true !== CurrSectPr.IsAllHdrFtrNull())
-                    {
-                        NextSectPr.Set_Header_First(CurrSectPr.Get_Header_First());
-                        NextSectPr.Set_Header_Even(CurrSectPr.Get_Header_Even());
-                        NextSectPr.Set_Header_Default(CurrSectPr.Get_Header_Default());
-                        NextSectPr.Set_Footer_First(CurrSectPr.Get_Footer_First());
-                        NextSectPr.Set_Footer_Even(CurrSectPr.Get_Footer_Even());
-                        NextSectPr.Set_Footer_Default(CurrSectPr.Get_Footer_Default());
-                    }
-                }
-
-                this.Elements.splice(Index, 1);
-                Len--;
-                Index--;
-
-
-            }
-            else if (CurPos >= Pos + Count)
-                this.Elements[Index].Index -= Count;
-        }
-    }
-};
-CDocumentSectionsInfo.prototype.GetCount = function()
-{
-	return this.Elements.length;
-};
-/**
- * Получаем секцию по заданному номеру
- * @param {number} nIndex
- * @returns {CDocumentSectionsInfoElement}
- */
-CDocumentSectionsInfo.prototype.Get = function(nIndex)
-{
-	return this.Elements[nIndex];
-};
-/**
- * Получаем секцию по заданной позиции контента
- * @param {number} nContentPos
- * @returns {CDocumentSectionsInfoElement}
- */
-CDocumentSectionsInfo.prototype.GetByContentPos = function(nContentPos)
-{
-	var nCount = this.Elements.length;
-	for (var nPos = 0; nPos < nCount; ++nPos)
-	{
-		if (nContentPos <= this.Elements[nPos].Index)
-			return this.Elements[nPos];
-	}
-
-	// Последний элемент здесь это всегда конечная секция документа
-	return this.Elements[nCount - 1];
-};
-/**
- * Получаем массив всех колонтитулов, используемых в данном документе
- * @returns {Array.CHeaderFooter}
- */
-CDocumentSectionsInfo.prototype.GetAllHdrFtrs = function()
-{
-	var HdrFtrs = [];
-
-	var Count = this.Elements.length;
-	for (var Index = 0; Index < Count; Index++)
-	{
-		var SectPr = this.Elements[Index].SectPr;
-		SectPr.GetAllHdrFtrs(HdrFtrs);
-	}
-
-	return HdrFtrs;
-};
-CDocumentSectionsInfo.prototype.GetAllContentControls = function(arrContentControls)
-{
-	for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
-	{
-		var SectPr = this.Elements[nIndex].SectPr;
-
-		if (null != SectPr.HeaderFirst)
-			SectPr.HeaderFirst.GetAllContentControls(arrContentControls);
-
-		if (null != SectPr.HeaderDefault)
-			SectPr.HeaderDefault.GetAllContentControls(arrContentControls);
-
-		if (null != SectPr.HeaderEven)
-			SectPr.HeaderEven.GetAllContentControls(arrContentControls);
-
-		if (null != SectPr.FooterFirst)
-			SectPr.FooterFirst.GetAllContentControls(arrContentControls);
-
-		if (null != SectPr.FooterDefault)
-			SectPr.FooterDefault.GetAllContentControls(arrContentControls);
-
-		if (null != SectPr.FooterEven)
-			SectPr.FooterEven.GetAllContentControls(arrContentControls);
-	}
-};
-/**
- * Обновляем заданную секцию
- * @param oSectPr {CSectionPr} - Секция, которую нужно обновить
- * @param oNewSectPr {?CSectionPr} - Либо новое значение секции, либо undefined для удалении секции
- * @param isCheckHdrFtr {boolean} - Нужно ли проверять колонтитулы при удалении секции
- * @returns {boolean} Если не смогли обновить, возвращаем false
- */
-CDocumentSectionsInfo.prototype.UpdateSection = function(oSectPr, oNewSectPr, isCheckHdrFtr)
-{
-	if (oSectPr === oNewSectPr || !oSectPr)
-		return false;
-
-	for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
-	{
-		if (oSectPr === this.Elements[nIndex].SectPr)
-		{
-			if (!oNewSectPr)
-			{
-				// Копируем поведение Word: Если у следующей секции не задан вообще ни один колонтитул,
-				// тогда копируем ссылки на колонтитулы из удаляемой секции. Если задан хоть один колонтитул,
-				// тогда этого не делаем.
-				if (true === isCheckHdrFtr && nIndex < nCount - 1)
-				{
-					var oCurrSectPr = this.Elements[nIndex].SectPr;
-					var oNextSectPr = this.Elements[nIndex + 1].SectPr;
-
-					if (true === oNextSectPr.IsAllHdrFtrNull() && true !== oCurrSectPr.IsAllHdrFtrNull())
-					{
-						oNextSectPr.Set_Header_First(oCurrSectPr.Get_Header_First());
-						oNextSectPr.Set_Header_Even(oCurrSectPr.Get_Header_Even());
-						oNextSectPr.Set_Header_Default(oCurrSectPr.Get_Header_Default());
-						oNextSectPr.Set_Footer_First(oCurrSectPr.Get_Footer_First());
-						oNextSectPr.Set_Footer_Even(oCurrSectPr.Get_Footer_Even());
-						oNextSectPr.Set_Footer_Default(oCurrSectPr.Get_Footer_Default());
-					}
-				}
-
-				this.Elements.splice(nIndex, 1);
-			}
-			else
-			{
-				this.Elements[nIndex].SectPr = oNewSectPr;
-			}
-
-			return true;
-		}
-	}
-
-	return false;
-};
-CDocumentSectionsInfo.prototype.private_GetHdrFtrsArray = function(oCurHdrFtr)
-{
-	var isEvenOdd = EvenAndOddHeaders;
-
-	var nCurPos    = -1;
-	var arrHdrFtrs = [];
-	for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
-	{
-		var oSectPr = this.Elements[nIndex].SectPr;
-		var isFirst = oSectPr.Get_TitlePage();
-
-		var oHeaderFirst   = oSectPr.Get_Header_First();
-		var oHeaderEven    = oSectPr.Get_Header_Even();
-		var oHeaderDefault = oSectPr.Get_Header_Default();
-		var oFooterFirst   = oSectPr.Get_Footer_First();
-		var oFooterEven    = oSectPr.Get_Footer_Even();
-		var oFooterDefault = oSectPr.Get_Footer_Default();
-
-		if (oHeaderFirst && isFirst)
-			arrHdrFtrs.push(oHeaderFirst);
-
-		if (oHeaderEven && isEvenOdd)
-			arrHdrFtrs.push(oHeaderEven);
-
-		if (oHeaderDefault)
-			arrHdrFtrs.push(oHeaderDefault);
-
-		if (oFooterFirst && isFirst)
-			arrHdrFtrs.push(oFooterFirst);
-
-		if (oFooterEven && isEvenOdd)
-			arrHdrFtrs.push(oFooterEven);
-
-		if (oFooterDefault)
-			arrHdrFtrs.push(oFooterDefault);
-	}
-
-	if (oCurHdrFtr)
-	{
-		for (var nIndex = 0, nCount = arrHdrFtrs.length; nIndex < nCount; ++nIndex)
-		{
-			if (oCurHdrFtr === arrHdrFtrs[nIndex])
-			{
-				nCurPos = nIndex;
-				break;
-			}
-		}
-	}
-
-	return {
-		HdrFtrs : arrHdrFtrs,
-		CurPos  : nCurPos
-	};
-};
-CDocumentSectionsInfo.prototype.FindNextFillingForm = function(isNext, oCurHdrFtr)
-{
-	var oInfo = this.private_GetHdrFtrsArray(oCurHdrFtr);
-
-	var arrHdrFtrs = oInfo.HdrFtrs;
-	var nCurPos    = oInfo.CurPos;
-
-	var nCount = arrHdrFtrs.length;
-
-	var isCurrent = true;
-	if (-1 === nCurPos)
-	{
-		isCurrent = false;
-		nCurPos   = isNext ? 0 : arrHdrFtrs.length - 1;
-		if (arrHdrFtrs[nCurPos])
-			oCurHdrFtr = arrHdrFtrs[nCurPos];
-	}
-
-	if (nCurPos >= 0 && nCurPos <= nCount - 1)
-	{
-		var oRes = oCurHdrFtr.GetContent().FindNextFillingForm(isNext, isCurrent, isCurrent);
-		if (oRes)
-			return oRes;
-
-		if (isNext)
-		{
-			for (var nIndex = nCurPos + 1; nIndex < nCount; ++nIndex)
-			{
-				oRes = arrHdrFtrs[nIndex].GetContent().FindNextFillingForm(isNext, false);
-
-				if (oRes)
-					return oRes;
-			}
-		}
-		else
-		{
-			for (var nIndex = nCurPos - 1; nIndex >= 0; --nIndex)
-			{
-				oRes = arrHdrFtrs[nIndex].GetContent().FindNextFillingForm(isNext, false);
-
-				if (oRes)
-					return oRes;
-			}
-		}
-	}
-
-	return null;
-};
-CDocumentSectionsInfo.prototype.RestartSpellCheck = function()
-{
-	var bEvenOdd = EvenAndOddHeaders;
-	for (let nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
-	{
-		var SectPr = this.Elements[nIndex].SectPr;
-		var bFirst = SectPr.Get_TitlePage();
-
-		if (null != SectPr.HeaderFirst && true === bFirst)
-			SectPr.HeaderFirst.RestartSpellCheck();
-
-		if (null != SectPr.HeaderEven && true === bEvenOdd)
-			SectPr.HeaderEven.RestartSpellCheck();
-
-		if (null != SectPr.HeaderDefault)
-			SectPr.HeaderDefault.RestartSpellCheck();
-
-		if (null != SectPr.FooterFirst && true === bFirst)
-			SectPr.FooterFirst.RestartSpellCheck();
-
-		if (null != SectPr.FooterEven && true === bEvenOdd)
-			SectPr.FooterEven.RestartSpellCheck();
-
-		if (null != SectPr.FooterDefault)
-			SectPr.FooterDefault.RestartSpellCheck();
-	}
-};
-CDocumentSectionsInfo.prototype.RemoveEmptyHdrFtrs = function()
-{
-	for (let nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
-	{
-		let oSectPr = this.Elements[nIndex].SectPr;
-		oSectPr.RemoveEmptyHdrFtrs();
-	}
-};
-CDocumentSectionsInfo.prototype.CheckRunContent = function(fCheck)
-{
-	let headers = this.GetAllHdrFtrs();
-	for (let index = 0, count = headers.length; index < count; ++index)
-	{
-		headers[index].GetContent().CheckRunContent(fCheck);
-	}
-};
-//----------------------------------------------------------------------------------------------------------------------
-// Search
-//----------------------------------------------------------------------------------------------------------------------
-CDocumentSectionsInfo.prototype.Search = function(oSearchEngine)
-{
-	var bEvenOdd = EvenAndOddHeaders;
-	for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
-	{
-		var oSectPr = this.Elements[nIndex].SectPr;
-		var bFirst  = oSectPr.Get_TitlePage();
-
-		if (oSectPr.HeaderFirst && true === bFirst)
-			oSectPr.HeaderFirst.Search(oSearchEngine, search_Header);
-
-		if (oSectPr.HeaderEven && true === bEvenOdd)
-			oSectPr.HeaderEven.Search(oSearchEngine, search_Header);
-
-		if (oSectPr.HeaderDefault)
-			oSectPr.HeaderDefault.Search(oSearchEngine, search_Header);
-
-		if (oSectPr.FooterFirst && true === bFirst)
-			oSectPr.FooterFirst.Search(oSearchEngine, search_Footer);
-
-		if (oSectPr.FooterEven && true === bEvenOdd)
-			oSectPr.FooterEven.Search(oSearchEngine, search_Footer);
-
-		if (oSectPr.FooterDefault)
-			oSectPr.FooterDefault.Search(oSearchEngine, search_Footer);
-	}
-};
-CDocumentSectionsInfo.prototype.GetSearchElementId = function(bNext, CurHdrFtr)
-{
-	var HdrFtrs = [];
-	var CurPos  = -1;
-
-	var bEvenOdd = EvenAndOddHeaders;
-	var Count    = this.Elements.length;
-	for (var Index = 0; Index < Count; Index++)
-	{
-		var SectPr = this.Elements[Index].SectPr;
-		var bFirst = SectPr.Get_TitlePage();
-
-		if (null != SectPr.HeaderFirst && true === bFirst)
-		{
-			HdrFtrs.push(SectPr.HeaderFirst);
-
-			if (CurHdrFtr === SectPr.HeaderFirst)
-				CurPos = HdrFtrs.length - 1;
-		}
-
-		if (null != SectPr.HeaderEven && true === bEvenOdd)
-		{
-			HdrFtrs.push(SectPr.HeaderEven);
-
-			if (CurHdrFtr === SectPr.HeaderEven)
-				CurPos = HdrFtrs.length - 1;
-		}
-
-		if (null != SectPr.HeaderDefault)
-		{
-			HdrFtrs.push(SectPr.HeaderDefault);
-
-			if (CurHdrFtr === SectPr.HeaderDefault)
-				CurPos = HdrFtrs.length - 1;
-		}
-
-		if (null != SectPr.FooterFirst && true === bFirst)
-		{
-			HdrFtrs.push(SectPr.FooterFirst);
-
-			if (CurHdrFtr === SectPr.FooterFirst)
-				CurPos = HdrFtrs.length - 1;
-		}
-
-		if (null != SectPr.FooterEven && true === bEvenOdd)
-		{
-			HdrFtrs.push(SectPr.FooterEven);
-
-			if (CurHdrFtr === SectPr.FooterEven)
-				CurPos = HdrFtrs.length - 1;
-		}
-
-		if (null != SectPr.FooterDefault)
-		{
-			HdrFtrs.push(SectPr.FooterDefault);
-
-			if (CurHdrFtr === SectPr.FooterDefault)
-				CurPos = HdrFtrs.length - 1;
-		}
-	}
-
-	var Count = HdrFtrs.length;
-
-	var isCurrent = true;
-	if (-1 === CurPos)
-	{
-		isCurrent = false;
-		CurPos    = bNext ? 0 : HdrFtrs.length - 1;
-		if (HdrFtrs[CurPos])
-			CurHdrFtr = HdrFtrs[CurPos];
-	}
-
-	if (CurPos >= 0 && CurPos <= HdrFtrs.length - 1)
-	{
-		var Id = CurHdrFtr.GetSearchElementId(bNext, isCurrent);
-		if (null != Id)
-			return Id;
-
-		if (true === bNext)
-		{
-			for (var Index = CurPos + 1; Index < Count; Index++)
-			{
-				Id = HdrFtrs[Index].GetSearchElementId(bNext, false);
-
-				if (null != Id)
-					return Id;
-			}
-		}
-		else
-		{
-			for (var Index = CurPos - 1; Index >= 0; Index--)
-			{
-				Id = HdrFtrs[Index].GetSearchElementId(bNext, false);
-
-				if (null != Id)
-					return Id;
-			}
-		}
-	}
-
-	return null;
-};
-//----------------------------------------------------------------------------------------------------------------------
-
-function CDocumentSectionsInfoElement(SectPr, Index)
-{
-    this.SectPr = SectPr;
-    this.Index  = Index;
-}
-
 function CDocumentCompareDrawingsLogicPositions(Drawing1, Drawing2)
 {
     this.Drawing1 = Drawing1;
diff --git a/word/Editor/Layout/ReadView.js b/word/Editor/Layout/ReadView.js
index e57e55b599..ca3333c3a1 100644
--- a/word/Editor/Layout/ReadView.js
+++ b/word/Editor/Layout/ReadView.js
@@ -54,7 +54,7 @@
 		AscCommon.ExecuteNoHistory(function()
 		{
 			oThis.SectPr   = new CSectionPr(oLogicDocument);
-			oThis.SectInfo = new CDocumentSectionsInfoElement(oThis.SectPr, 0);
+			oThis.SectInfo = new AscWord.DocumentSection(oThis.SectPr, 0);
 		}, oLogicDocument);
 		
 		this.OriginalSectPr = false;
diff --git a/word/Editor/sections/document-sections.js b/word/Editor/sections/document-sections.js
new file mode 100644
index 0000000000..7b6f57a228
--- /dev/null
+++ b/word/Editor/sections/document-sections.js
@@ -0,0 +1,816 @@
+/*
+ * (c) Copyright Ascensio System SIA 2010-2024
+ *
+ * This program is a free software product. You can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License (AGPL)
+ * version 3 as published by the Free Software Foundation. In accordance with
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
+ * street, Riga, Latvia, EU, LV-1050.
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * Pursuant to Section 7(b) of the License you must retain the original Product
+ * logo when distributing the program. Pursuant to Section 7(e) we decline to
+ * grant you any rights under trademark law for use of our trademarks.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+
+"use strict";
+
+(function()
+{
+	/**
+	 * Class for managing document sections and their header/footer content.
+	 *
+	 * @param {AscWord.Document} logicDocument - The parent document object
+	 * @constructor
+	 */
+	function DocumentSections(logicDocument)
+	{
+		this.logicDocument = logicDocument;
+		this.Elements = [];
+	}
+	DocumentSections.prototype.Add = function(SectPr, Index)
+	{
+		this.Elements.push(new DocumentSection(SectPr, Index));
+	};
+	DocumentSections.prototype.GetSectionsCount = function()
+	{
+		return this.Elements.length;
+	};
+	DocumentSections.prototype.Clear = function()
+	{
+		this.Elements.length = 0;
+	};
+	DocumentSections.prototype.Find_ByHdrFtr = function(HdrFtr)
+	{
+		if (!HdrFtr)
+			return -1;
+		
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			
+			if (HdrFtr === SectPr.Get_Header_First()
+				|| HdrFtr === SectPr.Get_Header_Default()
+				|| HdrFtr === SectPr.Get_Header_Even()
+				|| HdrFtr === SectPr.Get_Footer_First()
+				|| HdrFtr === SectPr.Get_Footer_Default()
+				|| HdrFtr === SectPr.Get_Footer_Even())
+				return Index;
+		}
+		
+		return -1;
+	};
+	DocumentSections.prototype.Reset_HdrFtrRecalculateCache = function()
+	{
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.Reset_RecalculateCache();
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.Reset_RecalculateCache();
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.Reset_RecalculateCache();
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.Reset_RecalculateCache();
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.Reset_RecalculateCache();
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.Reset_RecalculateCache();
+		}
+	};
+	DocumentSections.prototype.GetAllParagraphs = function(Props, ParaArray)
+	{
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.GetAllParagraphs(Props, ParaArray);
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.GetAllParagraphs(Props, ParaArray);
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.GetAllParagraphs(Props, ParaArray);
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.GetAllParagraphs(Props, ParaArray);
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.GetAllParagraphs(Props, ParaArray);
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.GetAllParagraphs(Props, ParaArray);
+		}
+	};
+	DocumentSections.prototype.GetAllTables = function(oProps, arrTables)
+	{
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.GetAllTables(oProps, arrTables);
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.GetAllTables(oProps, arrTables);
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.GetAllTables(oProps, arrTables);
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.GetAllTables(oProps, arrTables);
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.GetAllTables(oProps, arrTables);
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.GetAllTables(oProps, arrTables);
+		}
+	};
+	DocumentSections.prototype.GetAllDrawingObjects = function(arrDrawings)
+	{
+		for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
+		{
+			var SectPr = this.Elements[nIndex].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.GetAllDrawingObjects(arrDrawings);
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.GetAllDrawingObjects(arrDrawings);
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.GetAllDrawingObjects(arrDrawings);
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.GetAllDrawingObjects(arrDrawings);
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.GetAllDrawingObjects(arrDrawings);
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.GetAllDrawingObjects(arrDrawings);
+		}
+	};
+	DocumentSections.prototype.UpdateBookmarks = function(oBookmarkManager)
+	{
+		for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
+		{
+			var SectPr = this.Elements[nIndex].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.UpdateBookmarks(oBookmarkManager);
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.UpdateBookmarks(oBookmarkManager);
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.UpdateBookmarks(oBookmarkManager);
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.UpdateBookmarks(oBookmarkManager);
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.UpdateBookmarks(oBookmarkManager);
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.UpdateBookmarks(oBookmarkManager);
+		}
+	};
+	DocumentSections.prototype.Document_CreateFontMap = function(FontMap)
+	{
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.Document_CreateFontMap(FontMap);
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.Document_CreateFontMap(FontMap);
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.Document_CreateFontMap(FontMap);
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.Document_CreateFontMap(FontMap);
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.Document_CreateFontMap(FontMap);
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.Document_CreateFontMap(FontMap);
+		}
+	};
+	DocumentSections.prototype.Document_CreateFontCharMap = function(FontCharMap)
+	{
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.Document_CreateFontCharMap(FontCharMap);
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.Document_CreateFontCharMap(FontCharMap);
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.Document_CreateFontCharMap(FontCharMap);
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.Document_CreateFontCharMap(FontCharMap);
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.Document_CreateFontCharMap(FontCharMap);
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.Document_CreateFontCharMap(FontCharMap);
+		}
+	};
+	DocumentSections.prototype.Document_Get_AllFontNames = function(AllFonts)
+	{
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.Document_Get_AllFontNames(AllFonts);
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.Document_Get_AllFontNames(AllFonts);
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.Document_Get_AllFontNames(AllFonts);
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.Document_Get_AllFontNames(AllFonts);
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.Document_Get_AllFontNames(AllFonts);
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.Document_Get_AllFontNames(AllFonts);
+		}
+	};
+	DocumentSections.prototype.Get_Index = function(Index)
+	{
+		var Count = this.Elements.length;
+		
+		for (var Pos = 0; Pos < Count; Pos++)
+		{
+			if (Index <= this.Elements[Pos].Index)
+				return Pos;
+		}
+		
+		// Последний элемент здесь это всегда конечная секция документа
+		return (Count - 1);
+	};
+	DocumentSections.prototype.Get_Count = function()
+	{
+		return this.Elements.length;
+	};
+	DocumentSections.prototype.Get_SectPr = function(Index)
+	{
+		return this.GetByContentPos(Index);
+	};
+	DocumentSections.prototype.Get_SectPr2 = function(Index)
+	{
+		return this.Elements[Index];
+	}
+	DocumentSections.prototype.Find = function(SectPr)
+	{
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var Element = this.Elements[Index];
+			if (Element.SectPr === SectPr)
+				return Index;
+		}
+		
+		return -1;
+	};
+	DocumentSections.prototype.Update_OnAdd = function(Pos, Items)
+	{
+		var Count = Items.length;
+		var Len   = this.Elements.length;
+		
+		// Сначала обновим старые метки
+		for (var Index = 0; Index < Len; Index++)
+		{
+			if (this.Elements[Index].Index >= Pos)
+				this.Elements[Index].Index += Count;
+		}
+		
+		// Если среди новых элементов были параграфы с настройками секции, тогда добавим их здесь
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var Item   = Items[Index];
+			var SectPr = (type_Paragraph === Item.GetType() ? Item.Get_SectionPr() : undefined);
+			
+			if (undefined !== SectPr)
+			{
+				var TempPos = 0;
+				for (; TempPos < Len; TempPos++)
+				{
+					if (Pos + Index <= this.Elements[TempPos].Index)
+						break;
+				}
+				
+				this.Elements.splice(TempPos, 0, new DocumentSection(SectPr, Pos + Index));
+				Len++;
+			}
+		}
+	};
+	DocumentSections.prototype.Update_OnRemove = function(Pos, Count, bCheckHdrFtr)
+	{
+		var Len = this.Elements.length;
+		
+		for (var Index = 0; Index < Len; Index++)
+		{
+			var CurPos = this.Elements[Index].Index;
+			
+			if (CurPos >= Pos && CurPos < Pos + Count)
+			{
+				// Копируем поведение Word: Если у следующей секции не задан вообще ни один колонтитул,
+				// тогда копируем ссылки на колонтитулы из удаляемой секции. Если задан хоть один колонтитул,
+				// тогда этого не делаем.
+				if (true === bCheckHdrFtr && Index < Len - 1)
+				{
+					var CurrSectPr = this.Elements[Index].SectPr;
+					var NextSectPr = this.Elements[Index + 1].SectPr;
+					if (true === NextSectPr.IsAllHdrFtrNull() && true !== CurrSectPr.IsAllHdrFtrNull())
+					{
+						NextSectPr.Set_Header_First(CurrSectPr.Get_Header_First());
+						NextSectPr.Set_Header_Even(CurrSectPr.Get_Header_Even());
+						NextSectPr.Set_Header_Default(CurrSectPr.Get_Header_Default());
+						NextSectPr.Set_Footer_First(CurrSectPr.Get_Footer_First());
+						NextSectPr.Set_Footer_Even(CurrSectPr.Get_Footer_Even());
+						NextSectPr.Set_Footer_Default(CurrSectPr.Get_Footer_Default());
+					}
+				}
+				
+				this.Elements.splice(Index, 1);
+				Len--;
+				Index--;
+				
+				
+			}
+			else if (CurPos >= Pos + Count)
+				this.Elements[Index].Index -= Count;
+		}
+	};
+	DocumentSections.prototype.GetCount = function()
+	{
+		return this.Elements.length;
+	};
+	/**
+	 * Получаем секцию по заданному номеру
+	 * @param {number} nIndex
+	 * @returns {DocumentSection}
+	 */
+	DocumentSections.prototype.Get = function(nIndex)
+	{
+		return this.Elements[nIndex];
+	};
+	/**
+	 * Получаем секцию по заданной позиции контента
+	 * @param {number} nContentPos
+	 * @returns {DocumentSection}
+	 */
+	DocumentSections.prototype.GetByContentPos = function(nContentPos)
+	{
+		var nCount = this.Elements.length;
+		for (var nPos = 0; nPos < nCount; ++nPos)
+		{
+			if (nContentPos <= this.Elements[nPos].Index)
+				return this.Elements[nPos];
+		}
+		
+		// Последний элемент здесь это всегда конечная секция документа
+		return this.Elements[nCount - 1];
+	};
+	/**
+	 * Получаем массив всех колонтитулов, используемых в данном документе
+	 * @returns {Array.CHeaderFooter}
+	 */
+	DocumentSections.prototype.GetAllHdrFtrs = function()
+	{
+		var HdrFtrs = [];
+		
+		var Count = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			SectPr.GetAllHdrFtrs(HdrFtrs);
+		}
+		
+		return HdrFtrs;
+	};
+	DocumentSections.prototype.GetAllContentControls = function(arrContentControls)
+	{
+		for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
+		{
+			var SectPr = this.Elements[nIndex].SectPr;
+			
+			if (null != SectPr.HeaderFirst)
+				SectPr.HeaderFirst.GetAllContentControls(arrContentControls);
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.GetAllContentControls(arrContentControls);
+			
+			if (null != SectPr.HeaderEven)
+				SectPr.HeaderEven.GetAllContentControls(arrContentControls);
+			
+			if (null != SectPr.FooterFirst)
+				SectPr.FooterFirst.GetAllContentControls(arrContentControls);
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.GetAllContentControls(arrContentControls);
+			
+			if (null != SectPr.FooterEven)
+				SectPr.FooterEven.GetAllContentControls(arrContentControls);
+		}
+	};
+	/**
+	 * Обновляем заданную секцию
+	 * @param oSectPr {CSectionPr} - Секция, которую нужно обновить
+	 * @param oNewSectPr {?CSectionPr} - Либо новое значение секции, либо undefined для удалении секции
+	 * @param isCheckHdrFtr {boolean} - Нужно ли проверять колонтитулы при удалении секции
+	 * @returns {boolean} Если не смогли обновить, возвращаем false
+	 */
+	DocumentSections.prototype.UpdateSection = function(oSectPr, oNewSectPr, isCheckHdrFtr)
+	{
+		if (oSectPr === oNewSectPr || !oSectPr)
+			return false;
+		
+		for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
+		{
+			if (oSectPr === this.Elements[nIndex].SectPr)
+			{
+				if (!oNewSectPr)
+				{
+					// Копируем поведение Word: Если у следующей секции не задан вообще ни один колонтитул,
+					// тогда копируем ссылки на колонтитулы из удаляемой секции. Если задан хоть один колонтитул,
+					// тогда этого не делаем.
+					if (true === isCheckHdrFtr && nIndex < nCount - 1)
+					{
+						var oCurrSectPr = this.Elements[nIndex].SectPr;
+						var oNextSectPr = this.Elements[nIndex + 1].SectPr;
+						
+						if (true === oNextSectPr.IsAllHdrFtrNull() && true !== oCurrSectPr.IsAllHdrFtrNull())
+						{
+							oNextSectPr.Set_Header_First(oCurrSectPr.Get_Header_First());
+							oNextSectPr.Set_Header_Even(oCurrSectPr.Get_Header_Even());
+							oNextSectPr.Set_Header_Default(oCurrSectPr.Get_Header_Default());
+							oNextSectPr.Set_Footer_First(oCurrSectPr.Get_Footer_First());
+							oNextSectPr.Set_Footer_Even(oCurrSectPr.Get_Footer_Even());
+							oNextSectPr.Set_Footer_Default(oCurrSectPr.Get_Footer_Default());
+						}
+					}
+					
+					this.Elements.splice(nIndex, 1);
+				}
+				else
+				{
+					this.Elements[nIndex].SectPr = oNewSectPr;
+				}
+				
+				return true;
+			}
+		}
+		
+		return false;
+	};
+	DocumentSections.prototype.private_GetHdrFtrsArray = function(oCurHdrFtr)
+	{
+		var isEvenOdd = EvenAndOddHeaders;
+		
+		var nCurPos    = -1;
+		var arrHdrFtrs = [];
+		for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
+		{
+			var oSectPr = this.Elements[nIndex].SectPr;
+			var isFirst = oSectPr.Get_TitlePage();
+			
+			var oHeaderFirst   = oSectPr.Get_Header_First();
+			var oHeaderEven    = oSectPr.Get_Header_Even();
+			var oHeaderDefault = oSectPr.Get_Header_Default();
+			var oFooterFirst   = oSectPr.Get_Footer_First();
+			var oFooterEven    = oSectPr.Get_Footer_Even();
+			var oFooterDefault = oSectPr.Get_Footer_Default();
+			
+			if (oHeaderFirst && isFirst)
+				arrHdrFtrs.push(oHeaderFirst);
+			
+			if (oHeaderEven && isEvenOdd)
+				arrHdrFtrs.push(oHeaderEven);
+			
+			if (oHeaderDefault)
+				arrHdrFtrs.push(oHeaderDefault);
+			
+			if (oFooterFirst && isFirst)
+				arrHdrFtrs.push(oFooterFirst);
+			
+			if (oFooterEven && isEvenOdd)
+				arrHdrFtrs.push(oFooterEven);
+			
+			if (oFooterDefault)
+				arrHdrFtrs.push(oFooterDefault);
+		}
+		
+		if (oCurHdrFtr)
+		{
+			for (var nIndex = 0, nCount = arrHdrFtrs.length; nIndex < nCount; ++nIndex)
+			{
+				if (oCurHdrFtr === arrHdrFtrs[nIndex])
+				{
+					nCurPos = nIndex;
+					break;
+				}
+			}
+		}
+		
+		return {
+			HdrFtrs : arrHdrFtrs,
+			CurPos  : nCurPos
+		};
+	};
+	DocumentSections.prototype.FindNextFillingForm = function(isNext, oCurHdrFtr)
+	{
+		var oInfo = this.private_GetHdrFtrsArray(oCurHdrFtr);
+		
+		var arrHdrFtrs = oInfo.HdrFtrs;
+		var nCurPos    = oInfo.CurPos;
+		
+		var nCount = arrHdrFtrs.length;
+		
+		var isCurrent = true;
+		if (-1 === nCurPos)
+		{
+			isCurrent = false;
+			nCurPos   = isNext ? 0 : arrHdrFtrs.length - 1;
+			if (arrHdrFtrs[nCurPos])
+				oCurHdrFtr = arrHdrFtrs[nCurPos];
+		}
+		
+		if (nCurPos >= 0 && nCurPos <= nCount - 1)
+		{
+			var oRes = oCurHdrFtr.GetContent().FindNextFillingForm(isNext, isCurrent, isCurrent);
+			if (oRes)
+				return oRes;
+			
+			if (isNext)
+			{
+				for (var nIndex = nCurPos + 1; nIndex < nCount; ++nIndex)
+				{
+					oRes = arrHdrFtrs[nIndex].GetContent().FindNextFillingForm(isNext, false);
+					
+					if (oRes)
+						return oRes;
+				}
+			}
+			else
+			{
+				for (var nIndex = nCurPos - 1; nIndex >= 0; --nIndex)
+				{
+					oRes = arrHdrFtrs[nIndex].GetContent().FindNextFillingForm(isNext, false);
+					
+					if (oRes)
+						return oRes;
+				}
+			}
+		}
+		
+		return null;
+	};
+	DocumentSections.prototype.RestartSpellCheck = function()
+	{
+		var bEvenOdd = EvenAndOddHeaders;
+		for (let nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
+		{
+			var SectPr = this.Elements[nIndex].SectPr;
+			var bFirst = SectPr.Get_TitlePage();
+			
+			if (null != SectPr.HeaderFirst && true === bFirst)
+				SectPr.HeaderFirst.RestartSpellCheck();
+			
+			if (null != SectPr.HeaderEven && true === bEvenOdd)
+				SectPr.HeaderEven.RestartSpellCheck();
+			
+			if (null != SectPr.HeaderDefault)
+				SectPr.HeaderDefault.RestartSpellCheck();
+			
+			if (null != SectPr.FooterFirst && true === bFirst)
+				SectPr.FooterFirst.RestartSpellCheck();
+			
+			if (null != SectPr.FooterEven && true === bEvenOdd)
+				SectPr.FooterEven.RestartSpellCheck();
+			
+			if (null != SectPr.FooterDefault)
+				SectPr.FooterDefault.RestartSpellCheck();
+		}
+	};
+	DocumentSections.prototype.RemoveEmptyHdrFtrs = function()
+	{
+		for (let nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
+		{
+			let oSectPr = this.Elements[nIndex].SectPr;
+			oSectPr.RemoveEmptyHdrFtrs();
+		}
+	};
+	DocumentSections.prototype.CheckRunContent = function(fCheck)
+	{
+		let headers = this.GetAllHdrFtrs();
+		for (let index = 0, count = headers.length; index < count; ++index)
+		{
+			headers[index].GetContent().CheckRunContent(fCheck);
+		}
+	};
+	//------------------------------------------------------------------------------------------------------------------
+	// Search
+	//------------------------------------------------------------------------------------------------------------------
+	DocumentSections.prototype.Search = function(oSearchEngine)
+	{
+		var bEvenOdd = EvenAndOddHeaders;
+		for (var nIndex = 0, nCount = this.Elements.length; nIndex < nCount; ++nIndex)
+		{
+			var oSectPr = this.Elements[nIndex].SectPr;
+			var bFirst  = oSectPr.Get_TitlePage();
+			
+			if (oSectPr.HeaderFirst && true === bFirst)
+				oSectPr.HeaderFirst.Search(oSearchEngine, search_Header);
+			
+			if (oSectPr.HeaderEven && true === bEvenOdd)
+				oSectPr.HeaderEven.Search(oSearchEngine, search_Header);
+			
+			if (oSectPr.HeaderDefault)
+				oSectPr.HeaderDefault.Search(oSearchEngine, search_Header);
+			
+			if (oSectPr.FooterFirst && true === bFirst)
+				oSectPr.FooterFirst.Search(oSearchEngine, search_Footer);
+			
+			if (oSectPr.FooterEven && true === bEvenOdd)
+				oSectPr.FooterEven.Search(oSearchEngine, search_Footer);
+			
+			if (oSectPr.FooterDefault)
+				oSectPr.FooterDefault.Search(oSearchEngine, search_Footer);
+		}
+	};
+	DocumentSections.prototype.GetSearchElementId = function(bNext, CurHdrFtr)
+	{
+		var HdrFtrs = [];
+		var CurPos  = -1;
+		
+		var bEvenOdd = EvenAndOddHeaders;
+		var Count    = this.Elements.length;
+		for (var Index = 0; Index < Count; Index++)
+		{
+			var SectPr = this.Elements[Index].SectPr;
+			var bFirst = SectPr.Get_TitlePage();
+			
+			if (null != SectPr.HeaderFirst && true === bFirst)
+			{
+				HdrFtrs.push(SectPr.HeaderFirst);
+				
+				if (CurHdrFtr === SectPr.HeaderFirst)
+					CurPos = HdrFtrs.length - 1;
+			}
+			
+			if (null != SectPr.HeaderEven && true === bEvenOdd)
+			{
+				HdrFtrs.push(SectPr.HeaderEven);
+				
+				if (CurHdrFtr === SectPr.HeaderEven)
+					CurPos = HdrFtrs.length - 1;
+			}
+			
+			if (null != SectPr.HeaderDefault)
+			{
+				HdrFtrs.push(SectPr.HeaderDefault);
+				
+				if (CurHdrFtr === SectPr.HeaderDefault)
+					CurPos = HdrFtrs.length - 1;
+			}
+			
+			if (null != SectPr.FooterFirst && true === bFirst)
+			{
+				HdrFtrs.push(SectPr.FooterFirst);
+				
+				if (CurHdrFtr === SectPr.FooterFirst)
+					CurPos = HdrFtrs.length - 1;
+			}
+			
+			if (null != SectPr.FooterEven && true === bEvenOdd)
+			{
+				HdrFtrs.push(SectPr.FooterEven);
+				
+				if (CurHdrFtr === SectPr.FooterEven)
+					CurPos = HdrFtrs.length - 1;
+			}
+			
+			if (null != SectPr.FooterDefault)
+			{
+				HdrFtrs.push(SectPr.FooterDefault);
+				
+				if (CurHdrFtr === SectPr.FooterDefault)
+					CurPos = HdrFtrs.length - 1;
+			}
+		}
+		
+		var Count = HdrFtrs.length;
+		
+		var isCurrent = true;
+		if (-1 === CurPos)
+		{
+			isCurrent = false;
+			CurPos    = bNext ? 0 : HdrFtrs.length - 1;
+			if (HdrFtrs[CurPos])
+				CurHdrFtr = HdrFtrs[CurPos];
+		}
+		
+		if (CurPos >= 0 && CurPos <= HdrFtrs.length - 1)
+		{
+			var Id = CurHdrFtr.GetSearchElementId(bNext, isCurrent);
+			if (null != Id)
+				return Id;
+			
+			if (true === bNext)
+			{
+				for (var Index = CurPos + 1; Index < Count; Index++)
+				{
+					Id = HdrFtrs[Index].GetSearchElementId(bNext, false);
+					
+					if (null != Id)
+						return Id;
+				}
+			}
+			else
+			{
+				for (var Index = CurPos - 1; Index >= 0; Index--)
+				{
+					Id = HdrFtrs[Index].GetSearchElementId(bNext, false);
+					
+					if (null != Id)
+						return Id;
+				}
+			}
+		}
+		
+		return null;
+	};
+	
+	
+	//----------------------------------------------------------------------------------------------------------------------
+	
+	/**
+	 * Represents a document section associated with a specific paragraph.
+	 *
+	 * @param {AscWord.SectPr} sectPr - Section properties object containing formatting settings
+	 * @param {AscWord.Paragraph} paragraph - The paragraph object that ends this section
+	 * @constructor
+	 */
+	function DocumentSection(sectPr, paragraph)
+	{
+		this.SectPr = sectPr;
+		this.Paragraph = paragraph;
+		
+		this.Index = paragraph;
+	}
+	
+	//--------------------------------------------------------export----------------------------------------------------
+	AscWord.DocumentSections = DocumentSections;
+	AscWord.DocumentSection  = DocumentSection;
+	
+})();