This script allows you to track a bone globally and take its transformation to any other bone of any skeleton.
Bind points to bone at non-zero frame, saving their current position
Labels, paths, custom step and so on
Control which actions use selected bones or points and remove unwanted uses
Select bones whose names match the search string
Link mesh layers with ability to turn the link on and off
Tweak for built-in transform points and curvature to fix errors on smartbones driven points and bezier handles
Create a number of timeline markers with the interval of your choice.
Allows you to assign any layer in the project to a button for quick selection and visibility control.