Create a Body Morph and call it ScaleArms110?

I'm not sure if I understand your question completely? Creating a morph dial, readjusting a zero pose, making a dial value default other then 0 to start with? They are kind of different things.

You could export the scaled arms obj then reimport as a morph target.
But to save it for use in other scenes, you'll have to save the new figure in the library.

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