Can't close or minimize a single tab yet. Considering making right click the tab minimize and double click the tab close (performing those shortcuts on the little menu icon right of the tabs currently minimizes or closes the whole tab group).
Something else you might not have noticed: moving a dialog makes all subsequent dialogs open at that location. Things like this, moving the main toolbar, etc are intended to help those using multiple monitors or really large or wide screens.
Jaf, I'm sure it worked that way before. It is as described in my last post, the bones are deforming the vertices so by removing one of the bones the deformation changes.
