diff --git a/components/dockedformeditor/dockedstrconsts.pas b/components/dockedformeditor/dockedstrconsts.pas
index ce30accd4c..e543162303 100644
--- a/components/dockedformeditor/dockedstrconsts.pas
+++ b/components/dockedformeditor/dockedstrconsts.pas
@@ -12,6 +12,8 @@ resourceString
   SCode                       = 'Code';
   SDesigner                   = 'Form';
   SAnchors                    = 'Anchors';
+  SAllowSizingCaption         = 'Allow size changing';
+  SAllowSizingHint            = 'Grips can change size in Anchor Editor';
   SAnchorControlBorderCaption = 'Border Around Control';
   SAnchorControlColorCaption  = 'Control Background';
   SAnchorTabVisibleCaption    = 'Show Anchors Tab';
diff --git a/components/dockedformeditor/languages/dockedstrconsts.fr.po b/components/dockedformeditor/languages/dockedstrconsts.fr.po
index f1c8a0e400..4b5bddeea7 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.fr.po
+++ b/components/dockedformeditor/languages/dockedstrconsts.fr.po
@@ -12,6 +12,14 @@ msgstr ""
 "X-Poedit-SourceCharset: utf-8\n"
 "X-Generator: Poedit 1.8.6\n"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr ""
diff --git a/components/dockedformeditor/languages/dockedstrconsts.hu.po b/components/dockedformeditor/languages/dockedstrconsts.hu.po
index b8ed8a40fd..dcfec87986 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.hu.po
+++ b/components/dockedformeditor/languages/dockedstrconsts.hu.po
@@ -11,6 +11,14 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "X-Generator: Poedit 1.5.4\n"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr ""
diff --git a/components/dockedformeditor/languages/dockedstrconsts.lt.po b/components/dockedformeditor/languages/dockedstrconsts.lt.po
index a0063700ae..5a9a16d51f 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.lt.po
+++ b/components/dockedformeditor/languages/dockedstrconsts.lt.po
@@ -12,6 +12,14 @@ msgstr ""
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
 "X-Generator: Lokalize 2.0\n"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr ""
diff --git a/components/dockedformeditor/languages/dockedstrconsts.pot b/components/dockedformeditor/languages/dockedstrconsts.pot
index d529f38d17..fd8a579b71 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.pot
+++ b/components/dockedformeditor/languages/dockedstrconsts.pot
@@ -1,6 +1,14 @@
 msgid ""
 msgstr "Content-Type: text/plain; charset=UTF-8"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr ""
diff --git a/components/dockedformeditor/languages/dockedstrconsts.pt_BR.po b/components/dockedformeditor/languages/dockedstrconsts.pt_BR.po
index 9b5d562964..7733697f0f 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.pt_BR.po
+++ b/components/dockedformeditor/languages/dockedstrconsts.pt_BR.po
@@ -11,6 +11,14 @@ msgstr ""
 "Language: pt_BR\n"
 "X-Generator: Poedit 1.8.13\n"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr ""
diff --git a/components/dockedformeditor/languages/dockedstrconsts.ru.po b/components/dockedformeditor/languages/dockedstrconsts.ru.po
index e8728aba0f..0e19baa1c8 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.ru.po
+++ b/components/dockedformeditor/languages/dockedstrconsts.ru.po
@@ -11,6 +11,14 @@ msgstr ""
 "Language: ru\n"
 "X-Generator: Poedit 2.2.1\n"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr "Нижняя привязка"
diff --git a/components/dockedformeditor/languages/dockedstrconsts.tr.po b/components/dockedformeditor/languages/dockedstrconsts.tr.po
index 76a5ddf2f1..63f4e525b5 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.tr.po
+++ b/components/dockedformeditor/languages/dockedstrconsts.tr.po
@@ -11,6 +11,14 @@ msgstr ""
 "Language: tr\n"
 "X-Generator: Poedit 2.2.3\n"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr ""
diff --git a/components/dockedformeditor/languages/dockedstrconsts.uk.po b/components/dockedformeditor/languages/dockedstrconsts.uk.po
index 888e98412e..3b7deb3d8b 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.uk.po
+++ b/components/dockedformeditor/languages/dockedstrconsts.uk.po
@@ -11,6 +11,14 @@ msgstr ""
 "Language: ru\n"
 "X-Generator: Poedit 1.7.7\n"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr ""
diff --git a/components/dockedformeditor/languages/dockedstrconsts.zh_CN.po b/components/dockedformeditor/languages/dockedstrconsts.zh_CN.po
index 6620074e0b..cd4f40b218 100644
--- a/components/dockedformeditor/languages/dockedstrconsts.zh_CN.po
+++ b/components/dockedformeditor/languages/dockedstrconsts.zh_CN.po
@@ -12,6 +12,14 @@ msgstr ""
 "X-Generator: Poedit 1.8.7.1\n"
 "X-Poedit-SourceCharset: UTF-8\n"
 
+#: dockedstrconsts.sallowsizingcaption
+msgid "Allow size changing"
+msgstr ""
+
+#: dockedstrconsts.sallowsizinghint
+msgid "Grips can change size in Anchor Editor"
+msgstr ""
+
 #: dockedstrconsts.sanchorbottomcolorcaption
 msgid "Bottom Anchor"
 msgstr ""
diff --git a/components/dockedformeditor/source/dockedanchordesigner.pas b/components/dockedformeditor/source/dockedanchordesigner.pas
index 86bff0ad4a..9fdd733a44 100644
--- a/components/dockedformeditor/source/dockedanchordesigner.pas
+++ b/components/dockedformeditor/source/dockedanchordesigner.pas
@@ -73,9 +73,8 @@ type
     procedure PopupMenuAdapt(Sender: TObject);
     procedure SelectedAdaptAnchors;
     procedure SelectedAdaptBorder;
-    procedure SelectedAdaptBounds(RemoveAnchorSides: Boolean);
+    procedure SelectedAdaptBounds;
     procedure SelectedAnchorNewTarget(AKind: TAnchorKind);
-    procedure SetParent(AValue: TWinControl); override;
     procedure SetSelectedControl(AValue: TAnchorControl);
   public
     constructor Create(ADesignForm: TDesignForm; AParent: TWinControl);
@@ -85,6 +84,7 @@ type
     procedure EndUpdate; override;
     procedure Invalidate; override;
     procedure Refresh; override;
+    procedure SetParent(AValue: TWinControl); override;
   public
     property SelectedControl: TAnchorControl read FSelectedControl write SetSelectedControl;
     property State: TAnchorStates read FState write FState;
@@ -139,6 +139,8 @@ end;
 
 procedure TAnchorDesigner.AnchorControlMouseMove(Sender: TObject;
   Shift: TShiftState; X, Y: Integer);
+var
+  LAllowMoving: Boolean;
 begin
   if not State.IsMouseDown then Exit;
   if not (Shift = [ssLeft]) and not (Shift = [ssCtrl, ssLeft]) then Exit;
@@ -154,15 +156,22 @@ begin
     if not State.IsBordering then
     begin
       FBackGround.Invalidate;
-      FState := FState + [asAnchorTop, asAnchorLeft, asAnchorRight, asAnchorBottom];
-      if (akTop in FPreviousControl.Anchors) and Assigned(FPreviousControl.AnchorSide[akTop].Control) then
-        FState := FState - [asAnchorTop];
-      if (akLeft in FPreviousControl.Anchors) and Assigned(FPreviousControl.AnchorSide[akLeft].Control) then
-        FState := FState - [asAnchorLeft];
-      if (akRight in FPreviousControl.Anchors) and Assigned(FPreviousControl.AnchorSide[akRight].Control) then
-        FState := FState - [asAnchorRight];
-      if (akBottom in FPreviousControl.Anchors) and Assigned(FPreviousControl.AnchorSide[akBottom].Control) then
-        FState := FState - [asAnchorBottom];
+      if DockedOptions.AllowSizing then
+        FState := FState + [asAnchorTop, asAnchorLeft, asAnchorRight, asAnchorBottom]
+      else
+      begin
+        LAllowMoving := True;
+        if (akTop in FPreviousControl.Anchors) and Assigned(FPreviousControl.AnchorSide[akTop].Control) then
+          LAllowMoving := False;
+        if (akLeft in FPreviousControl.Anchors) and Assigned(FPreviousControl.AnchorSide[akLeft].Control) then
+          LAllowMoving := False;
+        if (akRight in FPreviousControl.Anchors) and Assigned(FPreviousControl.AnchorSide[akRight].Control) then
+          LAllowMoving := False;
+        if (akBottom in FPreviousControl.Anchors) and Assigned(FPreviousControl.AnchorSide[akBottom].Control) then
+          LAllowMoving := False;
+        if LAllowMoving then
+          FState := FState + [asAnchorTop, asAnchorLeft, asAnchorRight, asAnchorBottom]
+      end;
     end;
   end;
 
@@ -172,7 +181,7 @@ begin
     SelectedAdaptBorder;
   end else begin
     // sizing
-    SelectedAdaptBounds(False);
+    SelectedAdaptBounds;
   end;
   AdjustGrips;
 end;
@@ -294,8 +303,7 @@ begin
       FTargetControl.Color := DockedOptions.AnchorTargetColor;
     end else begin
       // size control
-      SelectedAdaptBounds(True);
-      FState := [asMouseDown, asMoving];
+      SelectedAdaptBounds;
       FTargetControl.Color := DockedOptions.AnchorControlColor;
       FTargetControl := nil;
     end;
@@ -317,6 +325,23 @@ begin
     Abort;
     Exit;
   end;
+  if not DockedOptions.AllowSizing then
+  begin
+    if State.IsAnchoringLeft and (FSelectedControl.AnchorSide[akLeft].Control = nil) then
+    begin
+      FSelectedControl.Left  := FPreviousControl.Left;
+      FSelectedControl.Width := FPreviousControl.Width;
+    end;
+    if State.IsAnchoringRight and (FSelectedControl.AnchorSide[akRight].Control = nil) then
+      FSelectedControl.Width := FPreviousControl.Width;
+    if State.IsAnchoringTop and (FSelectedControl.AnchorSide[akTop].Control = nil) then
+    begin
+      FSelectedControl.Height := FPreviousControl.Height;
+      FSelectedControl.Top := FPreviousControl.Top;
+    end;
+    if State.IsAnchoringBottom and (FSelectedControl.AnchorSide[akBottom].Control = nil) then
+      FSelectedControl.Height := FPreviousControl.Height;
+  end;
   FSelectedControl.AssignToRoot_Anchors;
   FSelectedControl.AssignToRoot_ControlsBounds(True);
 
@@ -773,7 +798,7 @@ begin
   FSelectedControl.BorderSpacing.Bottom := Max(0, LBottomBorder);
 end;
 
-procedure TAnchorDesigner.SelectedAdaptBounds(RemoveAnchorSides: Boolean);
+procedure TAnchorDesigner.SelectedAdaptBounds;
 var
   LMouseOffset: TPoint;
   LRect: TRect;
@@ -783,36 +808,28 @@ begin
 
   if State.IsAnchoringLeft then
   begin
+    FSelectedControl.RemoveAnchorSide(akLeft);
     LRect.Left := LRect.Left + LMouseOffset.x;
-    if RemoveAnchorSides then
-      FSelectedControl.RemoveAnchorSide(akLeft);
   end else
-    if RemoveAnchorSides then
-      FSelectedControl.AssignAnchor(FPreviousControl, akLeft);
+    FSelectedControl.AssignAnchor(FPreviousControl, akLeft);
   if State.IsAnchoringRight then
   begin
+    FSelectedControl.RemoveAnchorSide(akRight);
     LRect.Right := LRect.Right + LMouseOffset.x;
-    if RemoveAnchorSides then
-      FSelectedControl.RemoveAnchorSide(akRight);
   end else
-    if RemoveAnchorSides then
-      FSelectedControl.AssignAnchor(FPreviousControl, akRight);
+    FSelectedControl.AssignAnchor(FPreviousControl, akRight);
   if State.IsAnchoringTop then
   begin
+    FSelectedControl.RemoveAnchorSide(akTop);
     LRect.Top := LRect.Top + LMouseOffset.y;
-    if RemoveAnchorSides then
-      FSelectedControl.RemoveAnchorSide(akTop);
   end else
-    if RemoveAnchorSides then
-      FSelectedControl.AssignAnchor(FPreviousControl, akTop);
+    FSelectedControl.AssignAnchor(FPreviousControl, akTop);
   if State.IsAnchoringBottom then
   begin
+    FSelectedControl.RemoveAnchorSide(akBottom);
     LRect.Bottom := LRect.Bottom + LMouseOffset.y;
-    if RemoveAnchorSides then
-      FSelectedControl.RemoveAnchorSide(akBottom);
   end else
-    if RemoveAnchorSides then
-      FSelectedControl.AssignAnchor(FPreviousControl, akBottom);
+    FSelectedControl.AssignAnchor(FPreviousControl, akBottom);
 
   if FSelectedControl.RootControl.Constraints.MaxWidth > 0 then
     LRect.Width := Min(LRect.Width, FSelectedControl.RootControl.Constraints.MaxWidth);
@@ -836,13 +853,6 @@ begin
   FSelectedControl.Anchors := FSelectedControl.Anchors + [AKind];
 end;
 
-procedure TAnchorDesigner.SetParent(AValue: TWinControl);
-begin
-  inherited SetParent(AValue);
-  if Assigned(FBackGround) then
-    FBackGround.Parent := Parent;
-end;
-
 procedure TAnchorDesigner.SetSelectedControl(AValue: TAnchorControl);
 begin
   if FSelectedControl = AValue then Exit;
@@ -936,5 +946,12 @@ begin
   Invalidate;
 end;
 
+procedure TAnchorDesigner.SetParent(AValue: TWinControl);
+begin
+  inherited SetParent(AValue);
+  if Assigned(FBackGround) then
+    FBackGround.Parent := Parent;
+end;
+
 end.
 
diff --git a/components/dockedformeditor/source/dockedoptionsframe.lfm b/components/dockedformeditor/source/dockedoptionsframe.lfm
index 2273a43922..986f6bfc4f 100644
--- a/components/dockedformeditor/source/dockedoptionsframe.lfm
+++ b/components/dockedformeditor/source/dockedoptionsframe.lfm
@@ -12,9 +12,9 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideLeft.Control = Owner
     AnchorSideTop.Control = Owner
     Left = 6
-    Height = 15
+    Height = 13
     Top = 0
-    Width = 66
+    Width = 58
     BorderSpacing.Left = 6
     Caption = 'Tab Position'
     ParentColor = False
@@ -26,12 +26,12 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideRight.Control = Owner
     AnchorSideRight.Side = asrBottom
     Left = 6
-    Height = 23
-    Top = 15
+    Height = 21
+    Top = 13
     Width = 559
     Anchors = [akTop, akLeft, akRight]
     BorderSpacing.Right = 6
-    ItemHeight = 15
+    ItemHeight = 13
     ParentShowHint = False
     ReadOnly = True
     ShowHint = True
@@ -43,9 +43,9 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideTop.Control = ComboBoxTabPosition
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 15
-    Top = 44
-    Width = 68
+    Height = 13
+    Top = 40
+    Width = 63
     BorderSpacing.Top = 6
     Caption = 'Resizer Color'
     ParentColor = False
@@ -58,7 +58,7 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideRight.Side = asrBottom
     Left = 6
     Height = 22
-    Top = 59
+    Top = 53
     Width = 559
     Style = [cbStandardColors, cbExtendedColors, cbSystemColors, cbIncludeDefault, cbCustomColor]
     Anchors = [akTop, akLeft, akRight]
@@ -74,8 +74,8 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideRight.Control = ComboBoxTabPosition
     AnchorSideRight.Side = asrBottom
     Left = 6
-    Height = 15
-    Top = 112
+    Height = 13
+    Top = 104
     Width = 559
     Caption = 'Anchors'
     Anchors = [akTop, akLeft, akRight]
@@ -88,9 +88,9 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideTop.Control = DividerBevelAnchors
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 19
-    Top = 133
-    Width = 119
+    Height = 17
+    Top = 123
+    Width = 109
     BorderSpacing.Top = 6
     Caption = 'Show Anchors Tab'
     OnChange = CheckBoxAnchorTabVisibleChange
@@ -103,9 +103,9 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideTop.Control = CheckBoxAnchorTabVisible
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 15
-    Top = 158
-    Width = 90
+    Height = 13
+    Top = 146
+    Width = 83
     BorderSpacing.Top = 6
     Caption = 'Capture Distance'
     ParentColor = False
@@ -117,8 +117,8 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideRight.Control = ComboBoxTabPosition
     AnchorSideRight.Side = asrBottom
     Left = 6
-    Height = 23
-    Top = 173
+    Height = 21
+    Top = 159
     Width = 559
     Anchors = [akTop, akLeft, akRight]
     ParentShowHint = False
@@ -130,9 +130,9 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideTop.Control = SpinEditCaptureDistance
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 15
-    Top = 202
-    Width = 127
+    Height = 13
+    Top = 186
+    Width = 114
     BorderSpacing.Top = 6
     Caption = 'Mouse Bordering Factor'
     ParentColor = False
@@ -144,8 +144,8 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideRight.Control = ComboBoxTabPosition
     AnchorSideRight.Side = asrBottom
     Left = 6
-    Height = 23
-    Top = 217
+    Height = 21
+    Top = 199
     Width = 559
     Anchors = [akTop, akLeft, akRight]
     MaxValue = 10
@@ -160,9 +160,9 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideTop.Control = SpinEditMouseBorderFactor
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 19
-    Top = 246
-    Width = 142
+    Height = 17
+    Top = 226
+    Width = 128
     BorderSpacing.Top = 6
     Caption = 'Automatic Treat Aligns'
     ParentShowHint = False
@@ -171,12 +171,12 @@ object FrameDockedOptions: TFrameDockedOptions
   end
   object LabelColors: TLabel
     AnchorSideLeft.Control = LabelTabPosition
-    AnchorSideTop.Control = CheckBoxTreatBorder
+    AnchorSideTop.Control = CheckBoxAllowSizing
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 15
-    Top = 296
-    Width = 34
+    Height = 13
+    Top = 295
+    Width = 30
     BorderSpacing.Top = 6
     Caption = 'Colors'
     ParentColor = False
@@ -186,9 +186,9 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideTop.Control = ColorBoxResizer
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 19
-    Top = 87
-    Width = 157
+    Height = 17
+    Top = 81
+    Width = 146
     BorderSpacing.Top = 6
     Caption = 'Force Refreshing At Sizing'
     OnChange = CheckBoxAnchorTabVisibleChange
@@ -205,7 +205,7 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideBottom.Side = asrBottom
     Left = 6
     Height = 26
-    Top = 456
+    Top = 430
     Width = 559
     Style = [cbStandardColors, cbExtendedColors, cbSystemColors, cbIncludeNone, cbIncludeDefault, cbCustomColor, cbPrettyNames, cbCustomColors]
     Anchors = [akTop, akLeft, akRight]
@@ -222,7 +222,7 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideRight.Side = asrBottom
     Left = 6
     Height = 143
-    Top = 311
+    Top = 308
     Width = 559
     Style = [cbCustomColors]
     OnGetColors = AnchorsColorListBoxGetColors
@@ -236,13 +236,27 @@ object FrameDockedOptions: TFrameDockedOptions
     AnchorSideTop.Control = CheckBoxTreatAlign
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 19
-    Top = 271
-    Width = 187
+    Height = 17
+    Top = 249
+    Width = 170
     BorderSpacing.Top = 6
     Caption = 'Automatic Treat Around Border'
     ParentShowHint = False
     ShowHint = True
     TabOrder = 9
   end
+  object CheckBoxAllowSizing: TCheckBox
+    AnchorSideLeft.Control = LabelTabPosition
+    AnchorSideTop.Control = CheckBoxTreatBorder
+    AnchorSideTop.Side = asrBottom
+    Left = 6
+    Height = 17
+    Top = 272
+    Width = 170
+    BorderSpacing.Top = 6
+    Caption = 'Allow Sizing'
+    ParentShowHint = False
+    ShowHint = True
+    TabOrder = 10
+  end
 end
diff --git a/components/dockedformeditor/source/dockedoptionsframe.pas b/components/dockedformeditor/source/dockedoptionsframe.pas
index ab53b62af8..654cda4c50 100644
--- a/components/dockedformeditor/source/dockedoptionsframe.pas
+++ b/components/dockedformeditor/source/dockedoptionsframe.pas
@@ -33,6 +33,7 @@ type
     CheckBoxForceRefreshing: TCheckBox;
     CheckBoxTreatAlign: TCheckBox;
     CheckBoxTreatBorder: TCheckBox;
+    CheckBoxAllowSizing: TCheckBox;
     ColorBoxResizer: TColorBox;
     ComboBoxTabPosition: TComboBox;
     DividerBevelAnchors: TDividerBevel;
@@ -50,6 +51,7 @@ type
     procedure AnchorsColorListBoxGetColors(Sender: TCustomColorListBox; Items: TStrings);
     procedure AnchorsColorListBoxSelectionChange(Sender: TObject; User: Boolean);
   private
+    FLastAllowSizing: Boolean;
     FLastAnchorBorderColor: TColor;
     FLastAnchorControlColor: TColor;
     FLastAnchorTabsVisible: Boolean;
@@ -83,6 +85,7 @@ implementation
 
 procedure TFrameDockedOptions.CheckBoxAnchorTabVisibleChange(Sender: TObject);
 begin
+  CheckBoxAllowSizing.Enabled       := CheckBoxAnchorTabVisible.Checked;
   CheckBoxTreatAlign.Enabled        := CheckBoxAnchorTabVisible.Checked;
   CheckBoxTreatBorder.Enabled       := CheckBoxAnchorTabVisible.Checked;
   LabelColors.Enabled               := CheckBoxAnchorTabVisible.Checked;
@@ -130,6 +133,7 @@ begin
   for ATabPosition := Low(TTabPosition) to High(TTabPosition) do
     ComboBoxTabPosition.Items.Add(STabPosition[ATabPosition]);
 
+  CheckBoxAllowSizing.Caption      := SAllowSizingCaption;
   CheckBoxAnchorTabVisible.Caption := SAnchorTabVisibleCaption;
   CheckBoxForceRefreshing.Caption  := SForceRefreshingCaption;
   CheckBoxTreatAlign.Caption       := STreatAlignCaption;
@@ -141,6 +145,7 @@ begin
   LabelCaptureDistance.Caption     := SCaptureDistanceCaption;
   LabelMouseBorderFactor.Caption   := SMouseBorderFactorCaption;
 
+  CheckBoxAllowSizing.Hint       := SAllowSizingHint;
   CheckBoxAnchorTabVisible.Hint  := SAnchorTabVisibleHint;
   CheckBoxTreatAlign.Hint        := STreatAlignHint;
   CheckBoxTreatBorder.Hint       := StreatBorderHint;
@@ -153,6 +158,7 @@ end;
 
 procedure TFrameDockedOptions.ReadSettings(AOptions: TAbstractIDEOptions);
 begin
+  FLastAllowSizing        := DockedOptions.AllowSizing;
   FLastAnchorBorderColor  := DockedOptions.AnchorBorderColor;
   FLastAnchorControlColor := DockedOptions.AnchorControlColor;
   FLastAnchorTabsVisible  := DockedOptions.AnchorTabVisible;
@@ -174,6 +180,7 @@ end;
 
 procedure TFrameDockedOptions.WriteSettings(AOptions: TAbstractIDEOptions);
 begin
+  DockedOptions.AllowSizing        := CheckBoxAllowSizing.Checked;
   DockedOptions.AnchorBorderColor  := AnchorsColorListBox.Colors[ord(acControlBorder)];
   DockedOptions.AnchorControlColor := AnchorsColorListBox.Colors[ord(acControl)];
   DockedOptions.AnchorTopColor     := AnchorsColorListBox.Colors[ord(acAnchorTop)];
@@ -209,6 +216,7 @@ begin
   AnchorsColorListBox.Colors[ord(acAnchorTarget)]  := DockedOptions.AnchorTargetColor;
   CheckBoxAnchorTabVisible.Checked := FLastAnchorTabsVisible;
   CheckBoxAnchorTabVisible.OnChange(nil);
+  CheckBoxAllowSizing.Checked      := FLastAllowSizing;
   CheckBoxForceRefreshing.Checked  := FLastForceRefreshing;
   CheckBoxTreatAlign.Checked       := FLastTreatAlign;
   CheckBoxTreatBorder.Checked      := FLastTreatBorder;
diff --git a/components/dockedformeditor/source/dockedoptionside.pas b/components/dockedformeditor/source/dockedoptionside.pas
index f994746e7b..83f775aa97 100644
--- a/components/dockedformeditor/source/dockedoptionside.pas
+++ b/components/dockedformeditor/source/dockedoptionside.pas
@@ -58,6 +58,7 @@ type
     DefaultAnchorBottomColor  = $FFAA00;
     DefaultResizerColor       = $AAFFAA;
   private
+    FAllowSizing: Boolean;
     FAnchorBorderColor: TColor;
     FAnchorBottomColor: TColor;
     FAnchorControlColor: TColor;
@@ -76,6 +77,7 @@ type
     FTreatAlign: Boolean;
     FTreatBorder: Boolean;
     function  GetModified: Boolean;
+    procedure SetAllowSizing(AValue: Boolean);
     procedure SetAnchorBorderColor(AValue: TColor);
     procedure SetAnchorBottomColor(AValue: TColor);
     procedure SetAnchorControlColor(AValue: TColor);
@@ -103,6 +105,7 @@ type
     property ChangeStamp: Integer read FChangeStamp;
     property Modified: Boolean read GetModified write SetModified;
 
+    property AllowSizing: Boolean read FAllowSizing write SetAllowSizing;
     property AnchorBorderColor: TColor read FAnchorBorderColor write SetAnchorBorderColor;
     property AnchorControlColor: TColor read FAnchorControlColor write SetAnchorControlColor;
     property AnchorTabVisible: Boolean read FAnchorTabVisible write SetAnchorTabVisible;
@@ -136,6 +139,13 @@ begin
   Result := FLastSavedChangeStamp <> FChangeStamp;
 end;
 
+procedure TDockedOptions.SetAllowSizing(AValue: Boolean);
+begin
+  if FAllowSizing = AValue then Exit;
+  FAllowSizing := AValue;
+  IncreaseChangeStamp;
+end;
+
 procedure TDockedOptions.SetAnchorBorderColor(AValue: TColor);
 begin
   if FAnchorBorderColor = AValue then Exit;
@@ -251,6 +261,7 @@ end;
 
 constructor TDockedOptions.Create;
 begin
+  FAllowSizing        := False;
   FAnchorBorderColor  := DefaultAnchorBorderColor;
   FAnchorControlColor := DefaultAnchorControlColor;
   FAnchorTabVisible   := True;
@@ -296,6 +307,7 @@ var
 begin
   Cfg := GetIDEConfigStorage(AFilename, False);
   try
+    Cfg.SetDeleteValue('AllowSizing/Value',        AllowSizing,        False);
     Cfg.SetDeleteValue('AnchorBorderColor/Value',  AnchorBorderColor,  DefaultAnchorBorderColor);
     Cfg.SetDeleteValue('AnchorControlColor/Value', AnchorControlColor, DefaultAnchorControlColor);
     Cfg.SetDeleteValue('AnchorTopColor/Value',     AnchorTopColor,     DefaultAnchorTopColor);
@@ -322,6 +334,7 @@ var
 begin
   Cfg := GetIDEConfigStorage(AFilename, True);
   try
+    AllowSizing        := Cfg.GetValue('AllowSizing/Value',        False);
     AnchorBorderColor  := Cfg.GetValue('AnchorBorderColor/Value',  DefaultAnchorBorderColor);
     AnchorControlColor := Cfg.GetValue('AnchorControlColor/Value', DefaultAnchorControlColor);
     AnchorTopColor     := Cfg.GetValue('AnchorTopColor/Value',     DefaultAnchorTopColor);