@andy77 perhaps you can tell us exactly whats ‘not working’ and what you are trying to achieve.
if your using R-2x4+2 (important to give us full module names)
then modules 0-3 are chain 1, 4-7 chain 2, and 8,9 as the tail/global slots)
but id advise you get used to R-1x10 first, in particular the way if your using the organelle keys, the way the ‘active’ module is used.
e.g. you need to select the seq module to sequence, and but you can also test/sound design the synth, by select it as active.
(R-1x10 is easiest to visualise in your head as it just one long chain… so you don’t need to think about where the head of the chain is)
also, be careful with e-drum, it only responds to a few notes, not the whole keyboard.
(again why its important to be very specific about module names, as some behaviour is specific to the module)