1) The screen size is a tricky issue to solve, but we know about it.
2) Right click on the MIDI file on the track, in the menu go to "Find" and select "Show in Browser" or "Search with Tap2Find". Both of those should point you to the file.
3) See above answer
4) No. EZdrummer 2 was released long after Superior 2, that's why Superior 2 doesn't have all the features from EZdrummer 2.
5) I'll forward this to the web developers!
I hope this answer your questions 🙂 Thanks for the feedback