MPC500 connected to 2 SYNTHS to save KNOB movement as CUTOFF

Hi, i'm trying to connect my mpc to my 2 synths (with midi in/out/thru) and my midi keyboard (with only midi out).

The goal is to record the knobs data of the sytnhs into the mpc when i turn it while recording.
And of corse obtain the same when i click play on the mpc (for example a cutoff knob movement).

I have tried some configurations, but my midi path is wrong because everything crashes.

Can you suggest me your similar configuration?

Thanks

Dan

I have no clue if you can even do that with the MPC. I guess what I'm saying is, you might have better luck just getting stereo outs on your keyboard and use the record function on the MPC.

It's a mute midi keyboard, but i forgot to say i'm asking all about knobs midi recording because audio files can't be edited later as midi.

My actual solution is to connect the midi keyboard BEFORE the MPC, in order to save the knobs movement in the sampler, and NOT to use the synth knobs. I'm thinking to buy a midi keyboard with knobs and assignable CC, because if i connect the MPC to my VIRUS C midi in/out everything crashes!