Another observation:
If I have a classical structure of class (implementation in .cpp and interface in .h) and let's say I have 750+ classes, it becomes quite unmanageable and difficult to navigate if I want i.e. go from header to cpp file of this same class. I know that I can use swap header/source but first I didn't know at the beginning something like that existed in cb and second I think it would be more natural if I've had this two files on one tab and could switch between them. That would be quite unusual and new (I don't think anybody does such thing yet). This would make cb very first to have it and I think people would be drawn even more to this great IDE.