You do realize that Crew Animations are meshanimations and not Keyframed right?
So you can change the Keyframe stuff BUT the Meshanimations won't follow your timings on Keyframe stuff.
You can export the Meshanimations and do some simple changes there to match your keyframe stuff.
Then reimport with S3D. If you do it all right.
Have you looked at this thread?
https://www.subsim.com/radioroom/sho...55#post1532155
It might be easier to rip the animations from SH5 and use Blender to rebuild the animations since bones are available to move the 3D model joints.
Then export the multipule meshes and import with S3D to a SH3 type meshanimation.
And I did release the Tools and information to do just such a thing.
I may be the only person still active at SubSim that understands and can change animations in SH3/4/5.