Originally Posted by itimpi
That was why I said that you may want to look at how the current menubar functionality works. It should be possible to enhance it I would have thought to give the sort of functionality that you are talking about.
Yes, I see. But you are right - I feel that this kind of modification would be beyond me. The API interface looks somewhat clear to me, but I haven't dipped into the main Calibre code and don't feel confident enough to do it yet either.