Xbox Does Elite Dangerous Horizons cover multiple users

Yes, your Xbox Live membership travels with the account, not the console. So if you have a Gold Account signed into a console, you have Gold privileges on that console. You can recover that account on a different console and have Gold privileges.

This is also covered in the Gold Family Pack FAQ.

Q: I have multiple consoles in my family. Does my Xbox LIVE Gold Family Pack have to reside only one of those consoles?

A: When an individual is added to an Xbox LIVE Gold Family Pack, that person’s Xbox LIVE account must be on the same console as the primary account holder. However, once they are a part of your Xbox LIVE Gold Family Pack, that person could recover their account on a different console and still remain a part of the Family Pack, as long as they reside in the same country as the primary account holder.

Buy a docking computer and make sure it's active. When you request docking permission from a station the docking computer should automatically activate.