ACS Free Edition is a fully functional tool for rigging bipeds in Modo Indie.
It offers a flexible, general-purpose biped rig and a set of tools streamlining the processes of fitting, binding, weight painting, and animating.
ACS FE rigs are standard MODO scenes and after baking can be exported to external applications via .fbx format.
Rigging and animating characters in MODO has never been more accessible!