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 Auto IK enabled.
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