I've been experimenting with faces and I'm new to this area and I  don't know  what morphs I will need in advance, so I inject all of the head morphs and go through the dials trying different things until I find something I like.  As a result I am left with a long list of dials at zero. 

 Is there a way to delete or 'un-inject" the ones that are sitting at zero? 

The kind I'm referring to are those for things like mouth, ears, smiles, teeth... stuff like that. 

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi