Use RightGrip_BS with UE4_Mannequin_Skeleton

I asked this question on, but got no answers. I wish it will be ok to try my luck here.

I want to use the RightGrip_BS blend space file of the VR template with the default UE4 Mannequin Skeleton(I want the UE4 Mannequin to be able to grab), should I have to retarget the blend space file, or is there any way more convenient?