(note that in that case none of the KPA's out functions can be used on the THRU i.e. no progchg out)
like that, yes. but no, it doesn't work with editors...
so you claim that if the KPA is set to THRU (= case1 in my overview = device a+b both are not using THRU) --> the editor of the Strymon is not working?
can you confirm ?