Creating additional / second Source like Amazon / Epic / Steam

Good afternoon everyone.
So far login in and seeing my games I am able to download works, BUT is there a way to create a second source for things like Amazon, Epic, or Steam?
That is - 2 different people play here, both are running vastly different accounts on most of all download platforms.

And how would I change the shown name for the Source, so that I now Person A Epic / Person B Epic and so on?
Thank you very much for the help.