Deletes animation constraints by hierarchy, target or type.
None – Deletes constraints on selected nodes.
Below – Deletes constraints on selected nodes and the lower nodes below them in the hierarchy.
Object – Deletes constraints whose targets are objects.
UV – Deletes constraints whose targets are UV points.
Both – Deletes constraints for both types of targets.
All – Deletes all types of constraints.
Point – Deletes only point constraints.
Orientation – Deletes only orientation constraints.
Aim – Deletes only aim constraints.