Excellent info, thanks! About that new thread, I think I'll want until the vertical tabs thing has matured a bit more. Frankly, now that I know it's not a bug, I'm confident that, at some point, it'll be fixed. I'm more worried about the vertical tab...
There is also a weird thing with the now unified toolbar: there are two empty spaces, one at the very left, one at the right, between the control buttons (close, resize, minimise) and the rest. The left one, when the window is maximised, disappears. ...
I have to point out that the scrolling of the sidebar tabs is sluggish. However, the "List all tabs" drop-down list scrolls like a bullet. Please make sure you do something about the scrolling speed of the vertical tabs!Note: other vertical tabs add-...