Ok, im planning to make a base which involves the front having a slit to look through/shoot through/throw grenades through. how ever im using the surround by teleporters and door on top method and i can't get the wall low enough without it falling down, ive heard you can get under the map and place something for it to rest on, but i can't get under the map. (tried the way with the crate and standing on its spawn but it just throws me out)
Make sure that after you are grabbing the object that you are saving changes and ending the game. That might be your problem. Just block the object off with any immovable object, not just teleporters. Interlock an object into the one you want to geomerge. Grab the object you want to geomerge, wait a couple seconds, and while still holding onto the object save changes and end the game.