Ok guys i know there is a wishlist topic, but this thing would be a very important, which actually none of the brands has this function.
I use everything on midi channel 9. Eg when hitting a pad and setting tune will automatically select the right pad and the right engine. Thats cool for internal sequencing, but if you use an with an external sequencer like an old MPC or Ableton Push you have to choices.
Pad hitting will not select the pad for tuning...so you click by mouse. or Pad hitting will select midi, but this will change the actual note always as the groove going on by an external sequencer....so you have to stop the mpc select the pad. Make your tuning or attack changes and then continue playing. Its really can not keep you in the flow.
One small function will be a big game changer for me: A select button which is midi mappable! I mean you set your geist pad doesnt follow mode, and select your pad by holding button. And like this external groove won't affect the selection.