I'd like to be able to have a little bit finer control with the Face Stretch tool. I was wondering if it's possible to add vertices to it via the API.
As you can see from the image below, there are not a lot of vertices around the mouth.
I'd like to be able to, for instance, make the bottom lip bigger without affecting the top lip or teeth.
Please let me know if this is doable or if you can suggest an alternative for creating this effect.