Say you wanted to make a door that you can open, then close, or making switches with two grav lifts. Heres how to do it Place a grav lift down on the ground, set it to spawn at the start, and make it never respawn. Place another grav lif down (not on top of eachother) and sett it not to spawn at start, set the time to respawn to 180 seconds (3 minutes). Then go to the summery of it (where you can make it spawn instantly) and set it so one of the grav lifts spawn instantly, just make it 1/2 instead of 2/2. Start a new round. Now when the grav lift that spawns at the start is destroyed, the other one will spawn right after the grav lift is destroyed. If you dont destroy the grav lift before 3 minutes, the other one will spawn and this wont work. This can be used as another swith too. To make the Open and Closing Door, just do as said with the grav lifts with custom power ups. So when you hit the switch, the other power up will spawn in the door way pushing the door open and then when you pick up the power up, you close the door. Hope this helps all the forgers out there!!!!!! ~Echo SQ Leader
Yeh this is old news, sorry to burst your bubble. But well done on discovering it yourself! And you can find a tutorial for it if you click the link in my siggy. Tons of stuff like that there.