I'm using couple of Rad Editor controls in my webpart and using ToolProviderID for performance optimization. I'm initializing one rad editor toolbar from server side and using the same toolbar to provide other rad editors with their toolbar, Bascially I'm using ToolProviderID attribute to initialize other RadEditors, after doing this the Comments and Track Changes feature stop working although their options are selected in the toolbar. <telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1" EnableTrackChanges="true" EnableComments="true"> <TrackChangesSettings Author="AuthorName" CanAcceptTrackChanges="true" UserCssId="reU0" /> <Tools> <telerik:EditorToolGroup> <telerik:EditorTool Name="AcceptTrackChange" /> <telerik:EditorTool Name="RejectTrackChange" /> <telerik:EditorTool Name="AcceptAllTrackChanges" /> <telerik:EditorTool Name="RejectAllTrackChanges" /> <telerik:EditorTool Name="EnableTrackChangesOverride" /> </telerik:EditorToolGroup> </Tools> </telerik:RadEditor> <telerik:RadEditor ID="RadEditor2" runat="server" ToolProviderID="RadEditor1" EnableTrackChanges="true" EnableComments="true"></telerik:RadEditor> <telerik:RadEditor ID="RadEditor3" runat="server" ToolProviderID="RadEditor1" EnableTrackChanges="true" EnableComments="true"></telerik:RadEditor>