Autocue DLP USB Scroll Control - Manual (Page 11)

You have three choices for how to configure the scroll speed.
Use Scroll Table: Use a configurable scroll table to define the speed of the scroll.
Use Linear Mapping (recommended): Use a Linear-Mode Multiplier value to define the speed of the
scroll.
Use Logarithmic Mapping: Use a Logarithmic-Mode Multiplier value to define the speed of the scroll.
This allows for much faster scroll speeds than Linear-Mapping.
Zero Region Size: This is the size of the stopped portion of the scroll range. Increase this to make it
easier to stop the scroll. Maximum value is 15.