[NeoCZ]

You can maybe add filter so user can choose what he wants to see. For me most important are program change to verify it was sent or received properly and also some control changes (maybe another files what CCs to show?), I don't need every note on/off messages, but I can see in some cases it might be usefull.

And this is just one step from being able to turn pages etc. using MIDI commands, isn't it?