Do you have more instruction for COLLISION_EVENT

[sled]

I find the COLLISION_EVENT in your help document ->events table, It Occurs when the viewpoint collides with an object in the scene.

I have some question about it.

first, if the object is a moving object, for example , a running car,does this event occur when my viewpoint collides with it?

second, if two moving objects have collision, does this event occur?

third, can I handle several COLLISION_EVENTs at same time?