Learn more about this change here.
For help regarding Aternos, we recommend you to visit our support center.
Hi I just started using Aternos and I want to have a server that I can join on Xbox while its running on my PC so I can play with my friends on Xbox.
Your server is either running on your computer or on Aternos. We can only help you with issues / questions related to Aternos. If you want to run a server on your computer, we can't really help you here.
- How do I join on Xbox?
In Bedrock Edition of Minecraft (Minecraft on XBox = Bedrock Edition) you can add a 3rd party server on the servers tab of your game. Idk, if that's still the case, but you may not be able to this on consoles, since console vendors don't want that. In such case you have to use some bypasses like the BedrockTogether app.
- How can my friends join on Xbox?
In the same way as you join the server.
-How can I choose the Biome I want?
You can generate a world on the worlds page.
-How to choose an already preexisting realm and make it an aternos server?
You can upload already existing worlds on the worlds page.
-How to Bypass console restriction?
See above.
thx alot, it still works! 
