How to create a camera facing plane only rotate in Z axis?

I’m tring to create a lightbeam plane with camera facing property.But i want this mesh rotate only in Z axis with local space.X,Y have non-zero rotation but still keep oringinal direction.Can any one help me to complete my BP?

If you want it to rotate and always face the camera, the simplest way might be to just make it a particle. Though with a slanted plane like that the origin point will be critical in either case. I would do a few quick particle tuts. If you decide to use a ‘tube’ mesh, it will also work.

Thanks for you advices.But I’m not proficient in particle system,it seems i cant use this method.However,tube mesh is not a good shape in my case.