CSBuild: Pushbutton on a trick wall?

[Ian Clark]

How do I go about putting a pushbutton on a wall so that when pushed the wall disappars in front of you. I can only seem to get an actuator on the floor, I believe this is possible as I can see it a couple of times in Conflux 2

[beowuuf]

You can place a false wall in the palce of a floor tile after zyx requested it with csbuild, but i beleive you have to set up the floor actuator and its workings first, then alter the floor tile to a false wall tile

Edit: And remember to make sure your push button has a graphical number that is matched by a floor decoration, or else you will get some nasty dungeon glitches!