It is completely manual. The first switch turns the system on when pushed up and dumps the air when pushed down. The next buttons are front left, front right, rear left, rear right. The lights light up when the jacks are down. One of the lights is not working as I found out tonight. I was having an issue getting the suspension into travel mode. The coach leaned hard to port (left). One of the jacks had worked it's way down and when I tried to drive it was keeping the coach from leveling in travel mode. The mechanic was not familiar with the system and asked me what it was and it all became clear. Jack up, travel mode accomplished. Anyway a lot of this explanation was for Gerald's benefit also. I called him in a panic (almost) a week or so ago when I discovered it. I have no idea if this is like the BCS system. The tech., Nandy, did the conversion in about 6 hours on the day I picked up the coach. He even drew up a new schematic for me. Hopefully the pic of the control panel will be attached.