I mean the inbetween options where you add in between shapes. For example, I have 3 objects. 1 object is in the stand pose. The 3rd and last object would be my destination movement, maybe a punch. So that's 2 objects so far. If I were to blend shape that object, it would go from stand pose to a punch immediately in an unpredictable manner because it's linear. So to fix that, you need a 2nd object to put in between the first and 2nd object. Now it's a stand pose, a pose to ready a punch, then the actual punch. So that's the inbetween. Of course you don't use blend shapes for this type of stuff, but it was just an example. I'm trying to give my mouth open animation an arc, but I don't know how to add the inbetween shapes after already doing it in create blend shapes. Trying to add it, it kept giving me errors. W/out the inbetween in this, my mouth would open up like a sliding box, instead of a natural arc. Anyhow just wanted to know how to do that. There was an option for it, but I couldn't figure it out and kept getting errors.