I haven't read the whole thread so I'm not sure whether anyone has already mentioned this, but I thought I'd just throw this out there in case it is possible and someone wants to do it
I'd really LOVE a shortcut manager which could:
* Change/show original calibre shortcuts.
* Change/show different plugin shortcuts.
* Create custom shortcuts for changing specific metadata
ex. a shortcut for changing custom column yes/no (so I can mark multiple books as read and do this without entering the bulk edit window)