Bone IK Controller - Re-align Skeleton

Hey guys i am trying to understand how the BoneIK Controller demo works so i a can add FootIK (Placement) to plant feet on ground while playing certain animations.

But i am having a hard time rigging up a gltf model with ik controls

This demo works beautifully: https://playground.babylonjs.com/#2101ZD#8

But i can get to work with my models. Can someone please help me with FootIK / Foot Placement to plant feet on ground while playing certain animations ?

PRETTY PLEASE

Maybe @adam would know ?

Yo @adam … You around ???