Updated with Program select over sysex 
The units need to be on midi channel one, if you need to change the channel because of a more elaborate setup with various synth, the “C0” in the sysex command of the “Program Select” controller needs to be changed between C0-CF (ch. 1-16), as well as changing the midi channel for the overall E1 preset.
trying to figure out how to make the midi channel specified in the sysex command dependent on the channel selected for the whole preset, so they change together thereby making it a one step instead of two step process
DSI_SEQ PROPHET 08 REV1.epr (58.6 KB) DSI_SEQ TETRA.epr (61.1 KB)