If I have a normal arm say:

leftforearm,leftforearmroll, leftarm,leftarmroll,lefthand....

and my shoulder needs to have two joints like so:

leftforearm,leftforearm2,leftforearmroll, leftarm,leftarmroll,lefthand....
(I need this for shoulder plate armor to move once the arm is lifted so high.)

How could I get the FBIK to use it correctly?

I know I'll need to set joint limiting to get the armor working right, but my FBIK gets confused.



As you can see the arm swings under the armor and when that arm hits the round armor the armor must then move with the arm. Hope I explained that well.