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If you look at the tracks on the wall, when you lower the beds/couches the upper one stops at a predetermined height. There will be a block that the upper couch rests on as the bottom couch continues to lower.
There is a motor on one side, and a square tube running across to operate the other side. If you remove the lower couches you might be able to move the stop for the upper couch.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.