If you're asking how can you make your Xbox account primary and have that same account on all platforms, all you need to do is have that Xbox account have cross save turned on. And all of progression on that Xbox account will be on all platforms. Now. If you're asking " I have accounts on all platforms but I want Xbox account to be primary" All you need to do is merge all of those account into one "big" account. If you do that all of your progression on all of the different platforms and Xbox platform will be put onto one account. Hopefully this helps.