.Map :: MoHAA Mapping

I want to make a switch or trigger to open the door and have that be the only way. Should I make the door as usual, then mark it as TARGETED and put a targetname ***. The question is how to trigger it. which trigger do i use. The tigger_use? or is it possible to set up a working switch to open the door?

Here's a tutorial I wrote:

http://www.freewebs.com/axion9/tutorialsdoorswitch.htm