''trigger_arm: <zone>.<variable> | //<level>//'' 

This arms [[concepts:variables:triggers|triggers]] on a variable

  * **zone** is the zone containing the variable
  * **variable** is the variable to have the triggers armed on
  * If **level** is present, only triggers with that level will be armed

Note that as the variable field takes wildcards, you could for example arm an entire zone with:

''trigger_arm: somezone.*''