NPC activated trigger?

[Sonic]

I'm using an old version of the sandbox rpg. And I simply need to know the command to open a locked door using an npc.
Say I complete an npc quest, I want a locked door to open. Putting the door's level trigger under the completed dialogue only brings up:
Unkown command Level_trigger_whatever
There has to be a command I'd place for the door to open inside the npc code.
Any help would be greatly appreciated

[Sonic]

I can't figure out how to delete posts..but i figured it out after trial and error