Create them an account on the non-pro. Make sure the non-pro is set as your main console.
Then sign in on your Pro with your account. Because the non-pro is set as your main console other users will be able to play online/play your PSN plus games etc
Then sign in on your Pro with your account. Because the non-pro is set as your main console other users will be able to play online/play your PSN plus games etc