When I try to start a print from my AstroPrint mobile app on my Prusa MK2S with Multi Material Upgrade I must be physically present to select the extruder which will be used for the print. Is there a possibility for this to be programmed into my AstroBox or into the mobile app?
The best option I’ve found is copy the starting gcode from sSlic3r PE, or from Simplify3D and store that in your printer profiles on your Astroprint cloud.