Need help in connecting a second screen to my laptop

[Onasra]

Hello, i have recently bought a lenovo thinkpad e540 i7. its a great laptop so far, then i decided to connect a second 19'' screen for better gaming experience. my laptop has two video outputs one is the blue vga and the second one is an hdmi. (my laptop has two graphic cards one is the integrated 4600 intel hd graphic and the other one is geforce gt740M)
1) first on all if i connect my second screen to either of the video ports does it matter which vga card will be running my second screen??
2) secondly when i use the extend option( in the display setting) can i make the integrated vga card run my laptop's screen and the gt740m run my external screen since it will be used for gaming?

 

[Phillip Corcoran]

1) External monitor will use whichever of the two GPUs is active on the laptop.

2) You can't assign one GPU to the laptop screen and the other GPU to an external screen.