Nate,
This would be a fantastic tool. I do use AE to do my loop drawings but they are all set as reference drawings so they don't have any intellegence in them. If we could do this with some intellegence it would be of benifit for the surfing funcitons and such. I would guess that it would need to not show up on all reports etc. It could get confusing that way.
We are a company who specializes in instrumentation integrations so we do loop drawings on almost all projects so if they generated automatically, then just clean them up for specific details needed for each customer, that would save lots of time. It really stinks having to re-draw every analog signal a second time. Plus if they generated automatically, or semi-automatically, it would create more consitancey across the industry. Kind of like P&ID drawings and ISA symbols are an industry standard. If all loop drawings began to have simularities driven by the industry, we could get away from customer specifications that are so unique from project to project.
Maybe an approach would be to be able to select the loop from the plc card layout drawing? It would que for selecting components in the loop, then by window or crossing could select the items in the loop that are in one drawing to add to another drawing using specific drawing symbols? This would work real well for me.
Thanks,
Kevin