Remove mesh part

Hi there.

Is possible to remove a mesh part in Unreal Editor 4?

I own IClone Pipeline 5 and Monster Workshop from reallusion and I’m trying to export some characters to UE4.

I have the characters exported with full morph and bone animation, but there is a small problem: the resulting skinned mesh has white boxes attached to facial props (nose, ears…). There are also bones in skeleton for this boxes…

I noticed this boxes are transparent in Iclone/3DXChange, but I can’t manage to hide/remove them in Unreal Engine, neither in 3DXChange (I will post same question in reallusion also)

I tried importing same characters in another engine and there I can remove the boxes easily and the animations are still working. Can this be done into the Unreal editor? I think I can make them transparent but would be nicer if they can be removed.