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For example, if you've added a new bone to the hierarchy and want it included
and influenced by the Physique modifier, use the reinitialization mechanism
to effect its inclusion. Or maybe you've repositioned the biped structure relative
to the mesh, you'd need to reinitialize Physique settings to recognize those
changes.
Reinitializing with changed settings applies them as new defaults in the areas
you choose. Reinitializing without changing settings on the Physique
Initialization dialog is a method of erasing unsatisfactory changes you've made
to the Physique settings, again in those areas you specify.
Reinitialization mode of Initialization dialog
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