void
3
if you ‘Receive Any’, the original positions of both the kit and the pattern are preserved, as well as the number of kit that’s linked to th pattern.
there is no smart logic in the a4 which prevents you from accidentally overwriting existing patterns/kits in the project…
so imo, your best bet is to send the pattern to a specific slot, then send the kit to a specific slot, then get out of the sysex menu, select the pattern you just stored and load the kit you just stored 
it’s the only way to make sure you don’t accidentally overwrite something.