Interaction SDK Custom Hand Mesh

Hello,

I'm using V71 of the Meta XR Interaction SDK, and can't figure out how to add custom meshes for hand tracking when using the Isdk Hand Rig.

My pawn is setup roughly in line with the Getting Started guide, with an Isdk Hand Rig for each hand, and my interactions are setup and working without issue. Now I'm just unclear as to how to add a custom mesh for the hands instead of the default one. I've seen there is documentation for the Unity version of the Interaction SDK to do so, but not for Unreal. Does anyone have any tips on setting this up?