- Pose as Rest Pose
Conversely, you may define the current pose as the new rest pose (i.e. "apply" current transformations to the Edit Mode). When you do so, the skinned objects/geometry is also reset to its default, undeformed state, which generally means you will have to skin it again.
- Pose Selected as Rest Pose
Same as Pose as Rest Pose but only applies to selected bones.
- Visual Transform to Pose
Applies the position of the bone after Constraints; allowing the constraints to be deleted and the bones will remain in their constrained positions.
- Assign Custom Property Values as Default
Assign the current values of custom properties as their defaults, for use as part of the rest pose state in NLA track mixing.