I use several MIDI panels (bought cheaply on eBay) to get rid of the mouse in VR:
- 2 x Behringer X-Touch mini (8 rotary encoders + 24 buttons each) - great for autopilot panel,
- Novation Launch pad mini (80 buttons) - great for FMS.
The panels are driven by Axis and Ohs software. For most frequently used buttons (e.g. AP modes, HDG sync, EICAS display modes) I use voice control, great for VR, also with Axis and Ohs.