The Actor Collect operator allows you to collect elements of an actor that have been spread out into separate events, back into the current event.
Collect root (parent): brings the parent actor particle into this event.
Collect rig (children): brings the children actor rig particles into this event.
Collect rig (siblings): brings the sibling actor rig particles into this event.
Collect all: brings all parent/children/sibling actor and actor rig particles into this event.
Collected particles: collected particles will satisfy the test condition.
Collector particles: collector particles will satisfy the test condition.
All actor particles: all actor particles will satisfy the test condition.