regarding bypass--if you have the progressive industries EMS there should be a remote box (either with or without a digital display) with a bypass switch.
Pics of each below.
Snippet from manual:
ByPass: This switch is located on the remote display and allows the user to bypass the EMS in the event of failure, thus allowing AC power into the RV. This does not disable the surge protection portion of the EMS; however, all other features are disabled.
Of course, if you want to fully bypass it you will need to splice the 6Ga wires from the coach supply wiring to the distribution panel. I carry these just in case I run into problems. https://www.lowes.com/pd/Gardner-Ben...B&gclsrc=aw.ds