What I mean by that is, for example, I have a world that I've put onto a server on Windows 10 Bedrock. I've been able to connect to it on my phone while logged into the same Xbox Live account, but it treats it as two different accounts. I'd like to be able to log onto the server through the same XBL, whether on iOS or Windows 10, and continue my progress. Is this possible somehow and I'm just missing it?
Edit: I would prefer to be able to do it through the server software, not through the Realms.