Aloha G, (a real MIDIot here)
I read your post about this at the GR55 site and as you now know ,
there is no MIDI access to the GR55’s 'Looper" feature.
But as for patch changes:
A lil MIDI lesson:
Anything you do in MIDI is an ‘event’.
Notes are events and patch changes are events. and there are many others.
What you want to do is create a patch change event in Cubase.
You do this by opening up a MIDI/Instrument track in the:
‘List Editor’.
The List Editor is where the action is!
Everything that happens in a MIDI track will be in this list.
I remember reading a phrase in an old Cubase manual that said:
‘There is no such thing as ‘simultaneous’ in a MIDI track.
Everything is really an extremely tight arpeggio’.
So
1-learn to create MIDI events (manual or see below)
2-Create a ‘Patch Chain’ event.
3-Place (insert) that event in the List Editor a clik or two
just before where you want the sound to change.
and bob’s yer uncle’
The following technique may or may not be helpful for creating events
but I sometimes use it:
Using your controller (Guitarsynth/keyboard etc)
Just make a simple note event on a MIDI/Instrument Track.
Now open the List Editor and double clik on the event.
Now you can change the Note event to a ‘Pan’ or ‘Volume’
or ‘Bend’ or ‘PATCH CHAIN’ etc etc event.
HTH (hope this helps)
{‘-’}