Just a few things… ok… a lot of things. 
Ultra Mega Chord mode: Feature request discussion: Chord mode combination slots
Super Rad LFOs: Basic LFO request - Please!
Mono Sequencer Type: Feature request - MONO Sequencer Type
Min/Max range for CC & NRPN: Feature Requested a MIN MAX range for CC & NRPN & ASSIGN
Improved LFO Effect- feature requests 2 & 3 here → Feature Requests/Several ideas for Hapax
Consolidate MIDI Effects: "print" midi effects on a pattern?
MIDI Implementation and Transport In Control: Midi implementation chart for HAPAX / Feature Request: Integration of 'Transport In' Support for Hapax for External Control - #3 by MarlburroW