Disable the center docked icon of the dockguide for toolwindows in same docksite.

Hi,

How to disable the center docked icon of the dockguide ?

Is there any functionality like CanDockCenter for the docksite to restrict the toolwindow to be docked at the center of the another toolwindow in that docksite.

ForExample:

If there is one docksite named docksite that consist of two toolwindows named toolwindow1 and toolwindow2.

So toolwindow1 can be docked at the center of the toolwindow ,in that case two tabs will be formed.So How to restrict that functionality..?

ForExample

<docking:DockSite>

<docking:SplitContainer Orientation="Horizontal">

<docking:ToolWindowContainer>

<docking:ToolWindow x:Name="tw1">

</docking:ToolWindow></docking:ToolWindowContainer>

<docking:ToolWindowContainer><docking:ToolWindow x:Name="tw2">

</docking:ToolWindow></docking:ToolWindowContainer>

</docking:SplitContainer>

</docking:DockSite>

In the above example tw1 should not be docked at the center of the tw2 or vice versa.