It's in COBL. I think it's under options when you look at your inventory. You have to enable it (it's disabled by default), you can select your Denock Key then (Grab by default). It works fine.
I always install in this order with no problems: Colourwheels Hgec body Animation Replacer Animation theatre I don't use NMM or breathing idles. Also I think I chose NO animations for body and then chose flail animations later.