How do you update the display options on your virtual display?

[flowerdealer]

So I defined the resolutions I wanted on my virtual display. I need to update them later, how do I add new ones to the options.txt file. Do I need to add and reinstall the driver?

[james-s-w-clark]

• add to options.txt
• reinstall driver
• in Windows display settings, select the virtual monitor:
  
• then, edit the resolution and/or advanced info (for refresh rate):