Are you trying to model the beam copes and connections in 3D? If so Revit is not your best option for this and you should look into SDS/2 or Tekla for better solutions. Modeling of these things in 3D CAN be done, but requires tons of custom families with lots of trial and error based solely on what other have posted on this subject.
Detailing of these items in 2D drafting or even using Detail Components in top of live sections from the model can be done. As for better online, have you searched YouTube on this subject? It might not go into the level of detail you are looking for, but there is some good basic videos that might give you some better insight.
