To setup multiple screens with your laptop.

1. ensure your laptop is connected to screen / dock

2. Windows key ? + P

This menu will appear, select extend:

On the DESKTOP, right click anywhere that is blank, and this menu will appear, select Display settings:

• Your PC should automatically detect your monitors and show your desktop. If you don't see the monitors, select Detect.
• In the Multiple displays section, select an option from the list to determine how your desktop will display across your screens.
• Once you've selected what you see on your displays, select Keep changes.

3. When you press identify each of the screens will show a number.

4. You are able to drag the image of the screens to suit your preferred layout.