Yes. I dug it up again. For good reasons and some good news.
A 3Ds Max script that builds the exact biped SH4 uses will soon be released.
Animations for Secondary characters can be changed or new ones created.
Following close behind that? An export of new animations to an S3D importable MaxScript.
It's taken me, working alone, nearly 1 1/2 years to figure it all out.
