I downloaded the 2nd version of the FSX Gulfstream IV from Simviation and once I got past the file directory issues, I ran into two problems in trying to clean up the 2D panel in the autopilot area.
1- When doing a mouse rollover to adjust the HDG, on the outer edges you get a callout for the bank limit being 25%.
2- I see there is an N1 set button, but no adjustment for the N1 speed.