Hello Saga,
When I select an OPL instrument instead of a sample in the sample editor, the shortcuts for navigating to the other views (alt-P, G, N and C ) are not working Alt - I does work and when you then return to the OPL view all the shorcuts work again like they suppose to do. I think this is a bug? If so should I report this in the issue tracker?
By the way I really like the new triangle indicators for the samplecues! I haven't tested it thoroughly yet, but I have one GUI related suggestion. Would it be possible to als have a guideline projected on the samplewaveform, so you can position the cue more accurately? When I needed this I ussually made the cue points in wavosaur because wavosaur marker are recognized as cue points in openmpt.