UE to Rigify: How do I incorporate the ik_hand_l or ik_hand_r IK bones in my animation?

NEVER heard of you guys which amazes me. I just tried out bonebraker (which is free by the way for anyone not knowing that) and bam… got everything imported and converted to rigify correctly.
10/10 would recommend. I don’t get why you guys don’t work together with Epic Games. So much potential for excellent software here.