What are microscrolls?

Numerical values in all dialog boxes can be changed by using the microscrolls controls: .

Click the microscrolls to either increment or decrement the last digit. Right-click them to either increment or decrement the next-to-last digit (e.g., clicking the up microscroll increments .15 to .16, then .17, .18, etc., right-clicking the up microscroll increments 0.15 to 0.25, then .35, .45, etc.).

The following example illustrates how microscrolls can be controlled with the left- and right-mouse buttons.