Keys

I'm sorry? What is it that you mean exactly, Vasilius92​ ?

I guess on a shared PC. Probably wants to have his own library.

But, if so, then that can be done within the EA App. Just create a library with your name. 

The other way (totally guessing this is the request of OP) would be impossible. Meaning two installations of the EA app, one registered to him and with all games which are also linked to Steam.

So OP, if I got you right, your games are already installed so no key, if not installed then I don't know. I stopped linking accounts years ago due to various oddities. But regardless, You could make a library within the EA App, call STEAM GAMES, or similar.

I may have totally misunderstood you, I'm guessing. Could you elaborate a bit, then EA_Leeuw who is always helpful will give you the info.

(Sorry if I guessed totally wrongly - but TBH, not really clear exactly what you wish to do. Good luck all the same!)

Would seem the folly of the question has been recognized.