Hey Vesi!
A1: Make sure you have unlocked necessary Terminals (at some airports) to unlock Cargo Stands. Ex: in PRG you need T3 (near Runway 25) to unlock the Cargo Stands.
A2: Try unlocking more Destinations Arrivals for that sized plane. Make sure to also get as many handling as well. If you want even more, try getting a Player Connection as well
A3: You will not lose any gameplay as long as you have linked your game with Google Play Services or Apple Account.
A4: You will not lose any savings for switching airports. You can switch between any airport and your progress will always be saved.
A5. Yes, Golden Planes (GP) can be used to exchange for in Airport Money or to unlock Planes. You can also use it to unlock liveries for your fleet plane and import a custom color to use in your livery.
A6: same answer to A4
A7: If you meant “another liveries for B747 of KLM and Virgin” then you can suggest new liveries as a new suggestion post with real-life images. However, make sure to check older suggestions and the WoA Project Board if the suggestion already exists
https://portal.productboard.com/q21tiepvaqhvuqobnqsrviaa/tabs/4-airlines-liveries-candidates
A8: I’m assuming you meant the Player Connection Airports like INN, BRI, PRG, IAD, NGO, SAN (aka the ones players can play). You would need to establish a Player Connection with someone in order to get “Airport Strikes” and “Player Strikes” for that Airport and respective Achievement. I suggest look in / asking in Connections & Co . For a more in-depth guide, check this Wiki
Note: If you are updating the game to a major update like “Multistand Update - v1.30”, only airport levels are reset. The only way to reset progress for an airport is by hitting the respective small red icon in the Airport Selection Menu. For more about this, check this post and the replies in it:
There would be Wiki about this and other things soon…
If you have more questions or need more explanation, let me know!
Keep the blue side up!