I want to Attach some widgets to some of my actors . The widgets will be designed to always face to player camera no matter what rotation the actor is. and I want to know if there is a way I can make them always be rendered on top of the mesh and not clip through it or be occluded by it , I already have some plane meshes with a material that always facing the camera. but that is clipping through the mesh 
and not drawn in front of it.
Hope this makes sense
OK This option in the material was what I was looking for
But I have a UMG 3d widget and Im using materials for the icons .
And I would like to do the same, Only problem is that Setting the material domain to User interface remove the Depth test option> So HOW do I do this for UMG WIDGETS