Scroll speed is represented by the toolbar speed slider Speed control. 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:

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.