I understood that it's not possible to control the input gain, sometimes I experienced some problems with the levels of the loop of my plexi, getting the peak LED blinking continously even with Line level settings. I would like to know if there's a chance to see this feature added in a future update, I believe it could be really useful! Thanks!
Sorry - the hardware has no input gain control capability beyond the LINE switch. You do need a rather high level to overload it, so maybe you can reduce it elsewhere.