I’ve already setup a character mesh and rigged it with rigify. I can pose it with fk but when I try to use ik the mesh doesn’t respond. I looked at the constraints and the relevant ik constraint has 0.0 influence but when I try to change the influence higher using the slider, it stays at zero. The slider is purple so I figure there’s some kind of lock on it. How do I enable the ik controllers in rigify and change the influence of fk and ik bones?