I understand that process may work for you, but we would not like to be freezing layers in the base model. Other coworkers will be xreffing that file into their own for coordination, and if there are layers frozen in the base model than they may miss out on information.
Also, what if you want to have multiple ortho plans within the same area but showing different things. You would have to freeze layers in the base and create the ortho. Then if you want the same area but a different layer frozen you would have to freeze the new layer and thaw the one previously frozen. Then create the new ortho view. But say you want to go back and update the first ortho view. You would then have to go back to the base model, thaw the latest frozen layer and refreeze the first frozen layer associated to the first ortho you created. This is just a very simplistic situation, and it would be way too complicated to keep everything straight and coordinated.
Autodesk must make improvements to the ortho creation in order for us to use it on large projects. I just does not seem to work very will and is very limited in its abilitly to convey information on the drawings.
