The Live Path Onion Skinning addon for Blender 4.4+ 

[ Allows for the direct manipulation of the Motion Paths of Objects, Armatures,

and Bones with live updates to Onion skins on Multiple objects.]

[ Quickly select add and remove in groups or individually as needed.]

[ Entirely Custom Motion Pathing System from the ground up to Vastly improve performance ]

[ Superior To Blenders Motion Pathing in Every Way while streamlined for a Potato ]

[ Future ] updates will include:

1) Object Selection Box.

2) Full Replacement for the Graph Editors Transforms for Live Viewport Editing. 

3) Further performance improvements and options.