Before when I pull up the airport gate menu in FSX, it use to be the gate numbers such as, "Gate A5, A6, A6, or B2, B3, B4, etc, and would indicated the aircraft size as well. But now it noticed it is just numbers such as 300, 201, 302, etc, as an example. This is not a big issue with me, I was just wondering about the change.
But that's NOT an "issue"! It's how they are supposed to be. JFK real names for terminals are Terminal 1, Terminal 2, etc. But FSX naming scheme doesn't support this. Terminals can only be named like A, B, C or none at all. Also, FSX doesn't allow something like "Terminal XX, Gate 10B" or "Terminal XX, Gate 10A", which also happens at the real JFK.
So, in order to have the Terminal names more recognizable in the FSX menu, we used this convention, which is very standard amongst other developers too, so 201 means "Terminal 2, Gate 1", 302 means "Terminal 3, Gate 2", etc.
But this is an issue that relates just the default FSX "Go To Airport" menu.
Using the almighty GSX, we can overcome all limitations of the standard FSX menu, and have more descriptive/understandable names and groups for the terminals. So, if you use the GSX menu to POSITION the airplane, using the "Just Warp Me There" option, which just moves the airplane there without starting any service, you can have your gates listed in an easier and more realistic way, so you can use the FSX "Go To Airport" menu JUST to load the airport, for example selecting the active runway, and then use the GSX menu to position to the correct gate, using a much better list.
And, since repositioning using the GSX menu doesn't reload anything, the time to load the airport will be the same if you do it this way.