Naming groups/windows could be smoother

This is kind of two, similar issues:
First, I think when you create a new group or window, it should jump straight into changing its name. With the current renaming UI that would be intrusive, unless...

Second, I think the renaming UI would work a lot more smoothly if it mimicked Finder style. That is, when you rename something, it temporarily replaces the text with an editable version in the same location. This changes back to simple text display when you press enter, and reverts back to its original contents if you hit Esc or click anywhere outside of it.

Attached is a screenshot of Finder's renaming behavior.