I’m currently using the character (I’ve linked it below) and I want to be able to add more shapekeys. Ideally I’m hoping to add shapekeys from posing (by going into the modifiers and applying as shapekey). Unfortunately, every time I try doing that, the shapekey doesn’t work (it might be due to the fact that there are two armatures? I’m not sure).
If someone could please help me figure out how to add additional shapekeys, even if it’s a different solution than using the bones to pose, I would really really appreciate it.
Note that you’re going to have trouble here, because you have multiple objects (each needs its own shapekey) and you have multiple armature modifiers-- can only apply one as shapekey at a time.
Might consider duplicating, turning off subdiv, alt-c->curvetomesh, join as shapes instead of applying modifiers as shapekeys in this case.
Duplicate the mesh object in object mode. Disable the subdivision (and any other generative modifiers) on the duplicate.
Alt-c-> mesh from curve, in object with the duplicate selected. Basically writes all modifiers + shapekeys to the mesh. (Not a trustworthy method, just an easy method.)
Select duplicate, shift select original. On shapekey specials (triangle button dropdown to right of shapekeys) select join as shapes.