I only just recently made the move from FSX Steam to P3DV4.1. Quite a difference, I must admit. I have briefly looked at Simdirector (under the Tools on the menu). From what little I have read and seen, it does a LOT! I was lamenting not being able to use Instant Scenery 3 in V4, but Simdirector can do all that IS3 can do, and much more.

The documention is on Lockheed's site, and is quite extensive. A couple YouTube videos are available, but I have yet to take the time to watch them completely.

Just wondered what anyone else has to say about it? Thanks, Pete