Scroll speed is represented by the toolbar speed slider . The midpoint is an idle speed. Speeds to the right of the midpoint are positive and scroll forwards while speeds to the left of the midpoint are negative and scroll backwards. The larger the value the faster the scrolling. You can click and drag the slider to change the speed.
Changing speed
Speeds can be adjusted many ways to suit your need:
- Keyboard: Use the Decrease Speed or Increase Speed hot keys (by default ← and →) in Prompt mode to adjust speed. Use the Switch Direction hot key (default I) in Prompt mode to instantly switch scrolling direction. Pressing the 0-9 number keys in Prompt mode also sets the speed. Lastly, the menu shortcuts for Decrease Speed ⌥⌘←, Increase Speed ⌥⌘→, and Switch Direction ⌥⌘I perform the same behaviors as their hot key equivalents.
- Cursor movement: Moving the cursor up or down can adjust the speed while in Prompt mode. This presents a highly intuitive way to control the prompter, particularly for mouse users. You can turn this on in the Controls preferences.
- Scroll actions: Scroll actions over the script can adjust the speed while in Prompt mode. You can turn this on in the Controls preferences.
Subtleties
Speed changes at higher speeds have greater effect. For example, the difference between speeds 8 and 9 are more pronounced than the difference between speeds 2 and 3. This provides fine-tuning for more common speeds while providing the ability to ramp up speeds quickly. You can see the time effects of every speed change by setting the toolbar timer or prompter timer to “remaining” which is accomplished by clicking on the timer.
Finally, the speed numbers themselves do not correspond to anything in particular. While speeds are capped in the slider to -10 and +10, you can overdrive speeds by adjusting speeds through the keyboard or with cursor movement.