Confluence will be unusable 23-July-2024 at 06:00 due to a Crowd upgrade.
...
This window allows setting the main window display size as well as the dimension of the projection areas. The buttons are:
Open Evr - This will open the standard EVR configuration screen.
Apply - This will change the size of the main display screen and projection areas, if the given values are acceptably large.
Close - This will close the Advanced Mode window.
OK - This will change the size of the main display screen and projection areas, if the given values are acceptably large, and close the Advanced Mode window.
...