ID:272508
 
There is a way for me "anchor" a window on a main window of skin?
That made no sense. A window can't be placed in a window (a pane can, though, with the help of a child or tab).

All you can do is anchor every control in a pane; it's impossible to anchor a window.
In response to Jeff8500
He could be talking about docking, like how GIMP windows connect (or did when I last used them on my outdated computer) or how menus in word processing programs switch between being separate windows and toolbar items. If so, it's a reasonable question. It just isn't handled by BYOND and would take some manual code if it was possible to get it to work.