MPC live - Play (record) more than one track live together

Hi there,
I have question about live playing (recording) or control tracks with more than 1 people and contol more than 1 track which is actually assigned. I try to describe idea:

We have band with 3 or more person. For designing song from scratch we want to try new method to do this.
First person wil operate track with drums (fingering drumms from external midi controller for example presonus atom). Second person play from external midi keyboard via midi to next external device (ipad). Third person play next external keyboard to next external device.
I did not find a way to achieve this. Is it even possible? We would like to create songs more organic and then record ideas for next works on each parts directly in mpc.
THNX

May 14th 2.8 has finally bought these features. Not too long to wait

CAN THE MPC X, record on all 4 inputs to 4 separate audio tracks at the same time ?
Obviously each track would be mono instead of stereo.
I’m thinking about getting a drumbrute but need the MPC FX for each of the 4 outputs.