real4

Hi I have manages to make folder like fences windows - I see a title bar behind the dock and when my mouse moves over it it 'rolls up' and shows the content. When I double click on the menu bar it does the opposite, the window 'rolls-dows' to show the content (which is invisible behind the dock). I don't know how I managed to make it 'roll-up' the first time as oppsoed to Roll-down... I can I do that , so that I have a folder-like set-up? Th