To edit numbers in Paint Shop Pro dialogs, you use the Jasc numeric edit controls, which provide an easy way to edit numbers and change settings.
To edit numbers:
Do one of the following:
To enter a specific value, click the edit box, use the Delete or Backspace key to delete the number as needed, and then type a new value. You can also double-click the number to highlight it, and then type a new value.
Note: If you type a value in the edit box that is out of range for the control, the box turns red.
To increase or decrease the number by one, click the up or down arrow of the spin controls.
To choose an approximate value, click once at a position on the meter bar.
To choose from the range of possible settings, click and hold the mouse button down on the meter bar or the slider button, and then drag to select a desired setting and release the mouse.