This will be my first project using Revit MEP. I had some training, but it was a little over a year ago. My question is on lighting. The project is an office building. What is the best way to insert light fixtures? Do I want to use a reference plane for ceilings? One at 8', 8'-6", etc. Or do I want to make a ceiling in each room and just hide it when I print. I heard that you don't want to host it to the linked model because if they delete the ceiling you loose the fixtures. What should I do.