Weight Mirror Tool
The Weight Mirror Tool is a feature that copies vertex weights symmetrically from one side to the other.
Mirror Axis
Sets the axis to mirror weights for symmetrical copying.
Flip
Copies the weights by flipping them along the selected axis.
Distance
Adjusts the symmetrical copying range by moving the reference axis by the specified distance.
Basic
These are properties designed for easier rigging.
Show Handler
Toggles the visibility of handlers used for moving or rotating bones.
Show Bones
Displays bones in the scene.
Show Bones Names
Displays the names of bones.
Allows you to enable or disable the ability to select bones using Shift+Click.