What Happens When I Select a Check Box?

The following table explains what happens when you select a check box on the Authorization tab. Each pair of check boxes depicts the grant and denial settings for a permission in the Effective Permissions list. In each row, the pointer mouse pointer indicates an action (a mouse click) that occurs between the before and the after.
Mechanics of the Effective Permissions List
Before and After
Explanation
check boxes
A new explicit setting overrides and hides the opposing indirect (gray) setting.
check boxes
A new explicit setting overrides and hides the opposing ACT (green) setting.
check boxes
A new explicit setting is added on top of the matching indirect (gray) setting.
check boxes
A new explicit setting is added on top of the matching ACT (green) setting.
check boxes
A new explicit setting replaces the opposing explicit setting.
check boxes
The explicit setting is removed and one of these underlying indirect (gray) or ACT (green) settings is revealed.