Modifying and enhancing pick-whip expressions

Once you use the pick whip to create an expression, you can perform simple edits to alter the expression's effect. For example, you can add a scale factor to the expression to increase or decrease the effect. To edit a pick-whip expression, type directly in the expression field, and then press Enter on the numeric keypad or click outside of the field to activate it.

You can modify a pick-whip expression by using simple math operations, such as those listed in the following table:

Symbol	Function
+	add
-	subtract
/	divide
*	multiply
*-1	perform opposite of original, such as counterclockwise instead of clockwise

Using increasingly complex math functions provides an increasingly higher degree of flexibility. For example, you could use the math function /360*100 to change an expression's range from 0-360 to 0-100. This would be useful if you wanted to convert the values of a 360-degree dial to a slider that is measured in percentages.