Multiple subanim with B3D pipeline

Cleve, I try what you tell me, it work with normal animation but the Biped animation made with 3DSMax and exported with B3D pipeline don't work like that. I need to use the B3D extension code to animate my model.

What I want to know is how can we made several Subanim with 3DSMax that can be useful with the B3D Extension.

Thanks