Tool Settings

Mode

Pose Mode

Panel

Sidebar ‣ Tool ‣ Pose Options ‣ Auto IK

The auto IK option in the Sidebar enables a temporary IK constraint when posing bones. The chain acts from the tip of the selected bone to root of the upper-most parent bone. Note that this mode lacks options, and only works by applying the resulting transform to the bones in the chain.

Reference

Edit and Pose Mode

Panel

Sidebar ‣ Tool ‣ Options ‣ X-Axis Mirror

This option enables automatic mirroring of editing actions along the X axis. You can enable this option in the Tool tab ‣ Options panel, while the armature is selected in Edit Mode. When you have pairs of bones of the same name with just a different “side suffix” (e.g. “.R”/“.L”, or “_right”/“_left” …), once this option is enabled, each time you transform (move, rotate, scale…) a bone, its “other side” counterpart will be transformed accordingly, through a symmetry along the armature local X axis. As most rigs have at least one axis of symmetry (animals, humans, …), it is an easy way to keep the model symmetrical.

Reference

Mode

Panel

Sidebar ‣ Tool ‣ Options ‣ Relative Mirror

Accounts for any relative transformations when using X-Axis Mirror.

Note

Relative Mirror Limitation

This option is not supported with enabled.

Naming bones.