Avion jacks/levelers?

#1
I am trying to figure out how to use the jacks or levelers on an Avion camper. I just bought this and of course there's no owners manual. It appears there are levelers between the tires, but I can't find a switch that works them. It also has screw down jacks which I do know how to use. The item I am referring to between the tires looks like they are electrically operated. Does anyone have any suggestions?!
 
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