Is there a video tutorial out there for using the Void Extrusions in Revit Structure? I'm fairly new to Revit. I've been putting together concrete pan joist building. I need to cut a piece out of the top of a concrete beam to allow for a recessed area. For the life of me I can't seem to get the Void extrusion to work. Maybe another method would be better. I have used the cut profile on slabs but that doesn't work on the concrete beams. Any advise would be appreciated.