Yeah as far as messing with the .cfg file.... that's the first thing I would have done had this been a freeware aircraft or something else, but with advanced airliners like this..... not a good idea. Unfortunately, I exhaustively poured over all the documentation that came with this wonderful plane and did not see anything relating to reverse thrust N1, although I did find another issue: reversers are supposed to be available as soon as the mains touch down, and the autothrottles are supposed to disconnect. Instead, they remain at "idle" and I'm unable to select reverse thrust promptly. I tried changing the "A/T manual override" to "always" and that seems to have helped, but I'm still concerned about reverse N1. Here's a video that shows an N1 in the high 70's on an RTO. Although it's a simulator I'm pretty sure it's a level D and has all the capabilities that a 777 would have: