can't type 'm' in lyrics mode when 'm' is used for 'toggele metronome playback'.
1. Set for 'toggle metronome playback' shortcut 'm'.
2. try to type in lyrics mode lowercase 'm'.
3. It's not possible to type 'm'.
I did'nt try other assignments with 'm'. I use OSX El Captain and Windows 8.
Little bug but i hope it can be solved. Happy musescoring!
Best, Philip Bergwerf