Hi, my brother has GTA 5 on his PC and has shared his library with me, i have in exchange shared my library with him and so far it's been all good. I however want to play GTA 5 online using MY social club account. Since both of us know each other's password we access either account any time. Rockstar Social Club says once a key is entered it will be linked to that steam and social club account. I can view the GTA 5 key on his account and can enter it on mine. We want to know if that will make both copies work, or one, or none. If it only makes one work at a time could we go through the process where i enter the key anytime i want to play, and he enters it back anytime he wants to play? or would it only work once?