Parent / Unparent A Rig

left-click: Parent Rig To Parent Layer

This re parents any unparented parent layers back to the original rig.

If no parent layers have been unparented nothing will happen.

shift + left-click: Unparent Rig To Parent Layers

You can quickly unparent any parented layers by clicking this button. It will remove all parented layers from the rig and add a marker to them ( do not delete the marker ). To reparent the layers just left-click this button.

If you delete the marker from the layer. the Parent Rig To Parent Layer will fail.