So I know how to make a human meta rig using the rigify add-on (the one that comes included in 2.79). I also know how to add additional bones onto the rig, I can do all that stuff successfully, however I don't know how to add an IK chain to the rig.
Say for instance if I have four arms with four joints or a long anime hair strand i can make those bones a "copy chain" in the metarig and they will show up on the created rig but they are not "IK" bones only normal FK bones. I do know how to make IK chains normally but with the rigify rig there all sorts of different bones in different layers so I don't know where to apply the IK.
So is there a way to make create the IK chain onto the rig? Thanks.