Range - activeBarStart activeBarStart is 0 and value is 0. activeBarStart is 0 and value is 70. activeBarStart is 0 and value is -70. activeBarStart is -30 and value is 0. activeBarStart is 30 and value is 0. activeBarStart is between steps invalid activeBarStart value (less than min) invalid activeBarStart value (greater than max) activeBarStart is ignored with dual knobs enabled.