Add as a Session plugin and select your resolution.
Select Maintain in Background to have your preset applied when it changes for any number of reasons.
Known issue: Selecting the 4k preset on a non-4k monitor while Maintain in Background is checked may cause weird behavior.
Select Maintain in Background to have your preset applied when it changes for any number of reasons.
Known issue: Selecting the 4k preset on a non-4k monitor while Maintain in Background is checked may cause weird behavior.