Hi Channan, this is RDM (it's free):
https://www.reddit.com/r/apple/comments/vi9yf/set_your_retina_macbook_pros_resolution_to
It's old, but it works fine for me on 10.11.4. You don't need to load it unless you want to switch to a higher resolution - once switched, it will be retained even when the app isn't running... through reboots, even minor OS updates.
https://www.reddit.com/r/apple/comments/vi9yf/set_your_retina_macbook_pros_resolution_to
It's old, but it works fine for me on 10.11.4. You don't need to load it unless you want to switch to a higher resolution - once switched, it will be retained even when the app isn't running... through reboots, even minor OS updates.