The auto rig pro at Blender market for $30 gives me access to the SK_Mannequin rig mo cap. This rig was made in Blender but is using the SK_Mannequin walk cycle. Surely you will have to tweak some rotations after you duplicate the re-targeted animation from the SK_Mannequin to your Blender rig, but it worked. Frogman test, Blender to Unreal AutoRig capabilities. - YouTube. I am about to try it with the Unreal Ninja animations I bought from Unreal. With the Blender auto rig pro Unity and Unreal export rig (a special process to export game engine rigs) that re-targeting is possible I post the results.