My questions is 2 fold and deals with live performance and Midi.

1) I have four synths (two Korg Kronos, One Motif and a Korg M3) that I want to be able to switch patches on simultaneously with a foot pedal so all keyboards correspond to their respective patches I need for each song I perform. How is this done? My goal is to minimize downtime and not having to select the needed patches on each board manually.

2) Secondly, I want each keyboard to act independently in terms of it's sound patches, meaning I want no layering of other synths on any of the keyboards. I use each keyboard separately for the various patches of a given song. So if for instance, if I used the Motif as the master, I don't want to hear any sound from the slave keyboards on the Motif, I just want to hear the Motif and so on.Not sure if this is the way I would configure my MIDI set up anyway to achieve the results I'm looking for (from Out to In and then Thru to the others?).

So the bottom line is - I really just want to use MIDI for switching patches on each keyboard simultaneously but using each keyboard's sound patches independently.

Can anyone advise?

Thanks in advance.