Hello everyone i have to fess and say i don,t have a k but hope to buy another one soon,one thing i always hated was the indicators i had one years ago that had been converted to suzuki switches on the left bar which was good,however,it struck me that if the wiring for the indicators was swapped with the horn and cancel buttons life might be a little easier,so in essence the horn would now be what was the left indic and [which is easier to reach in a situation] to cancel would be the right one of course,the "lift" buttons would now be the indicators [because you always seem to have time to operate them usually]anyway just wondered if anybody out there has done this change, hope to see you some time, john andrews.

Search is your friend.  Try"Japanese controls" in the search bar and you'll get several hits.  Here's one:
https://www.k100-forum.com/t10150-wiring-in-non-bmw-handlebar-switches