[Solved]Setting up IK workflow questions

Can someone explain IK workflow to me. I skinned my model to the epic skeleton, and it works fine with animations. I am now trying to setup IK for feet placement, and having troubles as none of the IK bones are weighted to any vertices. How do I make these IK bones? When I export the UE4 skeleton, the IK bones arent included when I import them to my 3d editor. Do I set it up the IK inside UE or inside my 3d editor?

Thanks for any help

Solved: Virtual bones

You create IK inside your 3D editor to animate it and export the animation. Inside UE you use a "2 bones IK " node in your anim BP to control it, perfect for foot or hand placement.