Yes, my sceneries with docks are freeware and only for PC. But, It’s entirely possible there are airports available in the Marketplace for Xbox with “Dock” parking spaces, I haven’t checked.
If not, hopefully the new thing that allows us to edit scenery allows Dock parking spot creation. If not, hopefully it gets added before release since it’s going to take a few weeks before they can release it. I’ll ask at DevSupport.
The Boeing B314 comes with scenery around the world with dock parking spots, is that available on Xbox?