There are all sorts of things that you might want to trigger when the mission starts. Setting up the trigger is fairly simple. There are three ways to do it:

1. Create an Up/Down switch (Physical→Gizmo→Switches→Levers→Up/Down Switch). Open the properties, and edit the Tweq→JointState property. Set AnimS and Joint1AnimS to On.
2. Use TrigSim from GayleSaver’s Scripts/Public Scripts. Put that script on something like a marker.
3. Use NVRelayTrap from NVScript:
   • Put that script on something like a marker.
   • Add the Editor→Design Note property and type in NVRelayTrapOn=“Sim”

Once the object has been set up, give it a ControlDevice link to any object that needs to be triggered.