Depending on what model of your Big Foot.
If you have 2nd Generation Version 2 or greater
Per Operation manual:
To operate individual jacksโฆ EX. Driverโs side front leg, press FRONT & LEFT at the same time.
2015 RAM LongHorn 3500 Dually 4X4 CUMMINS
2013 Lifestyle LS35SB, MORryde IS System
AIRSAFE, Air Hitch