Ok, I'm using Entity 1.3.9 and I'm using the BSP viewer, but I can't figure out the controls. I think there is already a topic about this, but I couldn't find it so could anyone tell me the controls for it.
The grav lifts are the air lifts on the map just when spawned on the map they have weird green squares and you don't see the sand in the air. I don't remember what tag they're under though.