Had a 2000 coach with 4 point Big Foot hydraulic levelers that were independently controlled. I found that I pressed the buttons to extend/retract in pairs instead of just one. One thing that could happen by extending/retracting a single strut was that the entrance door would not open/close smoothly (or not at all) if slightly out of kilter. I like the pairs extend/retract set up. I typically use manual mode.
Linear Mode
