I very much like the tab-bar for workbench switching, it leaves much more space for the icons in the toolbar. On the other hand, I'm not a big fan of the Combo View, because it does 2 things, and none of them very well:
- it shows the model tree, which the tree view does also, but in full height, not 1/2 height
- it shows the properties of the selected object, but again at the width of the tree
When I look a the tree, I'd like it to be at maximum height so I don't have to scroll so much through the model tree, but I don't need it to be very wide. The Properties on the other hand needs to be wide, but it's not always used. One can enable the Properties window, but then it's always shown, even if not used and empty. I spend my time scrolling up and down, left and right, pushing the separators...
So I have a simple request: would it be possible to have a right-click behaviour as in many software, where right-clicking on an object would present "Properties" in the menu, and that would bring up the Properties window, that would disappear when done ("OK" "Apply" "Cancel"). And the properties window would remember the size and position used the previous time it was used, to accommodate the user's habits and screen layout. All widgets being equal, there is nothing wrong with them.
Thus, one could have only the combo view, pushing the separator all the way down to give it full height, and the properties window would only show when asked. When not used, there would be more place for the tree and the main window, and when called the properties window would be larger showing more infos. This right-click is a standard behaviour now on many software.