Individual channel impact quantities are set using the Aux 2 control in the standard approach.
There isn't any means of importing many different sampling formats. There's after all no strategy to record 8 audio tracks simultaneously. http://tortuga.su/dushevye-kabiny-00000000015/dush-kabiny-kaipunuo-go000000287/dush-kabina-eago-dz949f8-steam-shower-house-100010002300_go000000284-detail