It's become something of a habit to rename things with F2, so I keep clicking on the icon-looking objects in the "object pane" (all I can think to call it; is to the left of layout editor by default) and hitting F2 to rename them. It would be cool if this worked; it is always a pleasure when an application works as one has grown to use others intuitively. I do like that middle-clicking tabs closes them; that's the sort of thing I'm talking about.
Randomly, I guess I will also state that the Construct UI does not display very well with alternate Windows skins/colors. It's one of the only applications to make readability this awkward. Perhaps nothing can be done, but, here is a screenshot.