Updated Method To Simulate Physics On A Specific Set Of Objects On Collision With A Trigger?

[Everynone]

set of letter models in the sky […] I
want them to all fall down when the
player collides with a trigger

With Simulate disabled on the meshes:

Can be made more elegant depending on how the meshes make it into the level. The collision in the example is wonky because I set it up this way; it will look more natural with actual meshes, obviously.