I've had so many of these it's incredibly, many of them were untended from the start, some , all new..
• Change MIDI ARP Mode Player key with MIDI note played - yup, yup and yup - my favourite.
• MIDI Player Mode Fill Screen - on it!
• Curved envelopes - would love to work on this one too!
• MIDI CC Control - we hear ya! It's close to the top of the list for things like the mains filter controls and ADAR envelops. Useful stuff first.