Have you done the regular BMW software update for the idling issue?
not sure what you mean.
balancing the throttle bodies is still important at major services,
you can get a slightly better idle by asking the stepper motors to calibrate themselves, they go full travel and settle with each doing the right thing, its mostly placebo
you can go from the joke original maps to a later one (giving far better low speed running and a more noticeable power increase when you go from 95 to 99 octane fuel (euro numbering not the wrong USA one)
however it will still leave the designed in noise and emission cheat flat spots that most bikes have... nothing you can do to resolve without "remapping" and well worth doing. sadly no one seems to understand BM mapping so all they offer is adaption (limited adjustment) bodging... but that should still be a fair bit better than just a fueling tweak with a power commander…. look for Hilltop videos on youtube… they seem to be the adaption bodge experts in the UK with a great reputation (1200GS)
if you buy a real bike.... (not BM or later KTMs) you can give Woolwich racing some money and get to play with normal maps and do it properly