Hello! so i have been working on a rig for animation for a while, and its almost done. anyways, so i have made IK and FK bones and a switch, all i really need to do now is make it so that (for example) i want to make the left arm FK, so when i switch, the bone layer with the IK turns off and the one with the FK turns on. i would really appreciate it if maybe you could help me with this or send me a tutorial video (as i could only find one video about this, and it was in pretty bad quality and very outdated) or a video of yourself doing it. By the way. i am still in version 2.79. Thanks!
almost forgot, here is the bend file for my rig if you want to get a better look at it:
character body V1 - bones8 - Organization.blend (1.5 MB)