Noob Question: How to keep Control Splines and Bones separately?

Any 3Ds Max animators here?

I need to export to UE4 a Character rigged with max bones in 3Ds Max. The problem is that the rig has multiple roots, each - controlled by its own helper object (simple primitive splines). How do you setup your rigs properly for UE4 export?

So basically, I have smth like this:


-root_BONE
-----Control_SPLINE
-----------Bone
-----------Bone
---------Control_SPLINE
------------------Bone
------------------Bone
----------------Control_SPLINE
-------------------------Bone
-----Control_SPLINE
-----------Bone
-----------Bone
---------Control_SPLINE
------------------Bone
------------------Bone
------------------Bone
-----Control_SPLINE
-----------Bone
-----------Bone
-----------Bone

Is there a chance to still export this kind of rig correctly to UE4 and if not what needs to be done? Or should I re-rig it from scratch?
Thanks a lot in advance!