ConceptStation Tools in LumenRT?

Hello,

2 questions - is there a way to add additional items (traffic signals, light poles etc) to LumenRT? and is there a way to take an OpenRoads model into ConceptStation add addl. roadway items, then export to LumenRT for the final rendering/animation? The ConcepStation tools for placing items along a roadway are so easy to use, and I don't see equivalent tools in LumenRT

Thanks,

Tom F.