This string defines the scale for the input faders. It also defines the upper and lower limit of the faders.

The string defines 1 or more segments (separator is ';'):

A single segment consists of the height value in percent and 2 or more scale values (separator is ','):
"100.0,2.0,1.0,0.0,-1.0-2.0" ; Height is 100%, values are 2.0...-2.0

A scale with 2 segments can look like this:
"40,2,1,0;60, 0,-1,-2,-3,-4,-5,-6,-8,-9,-12,-15,-18.-24,-48"
Possible values: [see description]
Default value: 100.0,6.0,3.0,0.0,-3.0,-6.0,-9.0,-12.0,-48.0