Avastar missing the 'fitted' option.

[Sloofish]

I was following a few avastar tutorials for adding physics to an original mesh model but all of them go from where I was, finishing weight painting, to going to a category called 'fitting' and generating weights for physics. That's where the red physics bones show up and they continue from there. But my avastar is lacking this option.

What did I do wrong? Is there an update I'm missing, a setting, some sort of priming for the model to be done first?

Alternatively, is there an alternate way to add physics bones in blender that will work with second life's physics?

Other people

Me

I am using a second life skeleton, if that helps any.

Edited April 9, 2019 by Sloofish