I can remember when I built NZCH for P3D it was easy enough to get a reasonably accurate gate parking, with a couple of gates reserved for the real heavies, other jets lined up at appropriate gates, and the prop-liners down by the walk-in gates. With MSFS I can't figure out how to get things to park in the right place, the normal size and type of parking doesn't seem to restrict anything from parking anywhere, so the props are at jetways, and the jetliners are sometimes stuck at a ramp. In the SDK editor it isn't even possible to assign airlines to gates like in P3D, although I understand I can edit the XML by hand, I just haven't got around to trying that yet. The only thing I can think to try now is to renumber all the parking, to see if the sim sticks close to numerical order.
Here's the current mish-mash of gate assignments.

I'm already moaned about the crops within the airport...
One interesting thing I didn't know before, I've been trying to spend zero dollars in the Marketplace, exchanging Bing points for Xbox gift cards, and using these to buy addons now and then. I've managed a couple of airports and a few cheaper aircraft so far, but the issues is that for some reason these gift cards expire after a month, so If I don't spend 'em I lose them. I've got around this by using them to buy Simverse Coins. These, of course, is what we use to buy addons in the Marketplace, obviously designed to get around limitation of the Marketplace, but I can't make sense of it. I think it might be that if you want a refund, they don't give you your money back, they just refund Simverse Coins.
Last month I had almost enough to buy an NZA airport (maybe NZWF), but the only one updated for 2024 is Nelson, and I don't want that. So I thought I'd buy one in 2020, and when it is updated (I know they've been awaiting a few fixes in 2024, but I'm not sure if SU3 is enough progress) I'd use it in 2024. However turns out that 2020 isn't part of the Simverse, it still uses the old Flightsim Credits. Hey, I don't make up these names. So I can't spend my Coins yet, but at least I know they won't expire. At least not until they change the rules.