Is there a way to prevent moving artwork in the rigging panel?

Is there a way to 'lock' your artwork in the rigging panel to prevent it from being moved? 

I was rigging my character to walk today and idk if some of the handles/behaviours messed things up or if I accidentally dragged the artwork out of place, but the arms and neck were messed up. They're fine in the illustrator document, but I had to manually move them back into place in the rigging panel. 

Is there a way to prevent this? Some sort of preference or setting I should have turned on? 

Thanks!