If an input device controls more than one variable, the user should not have to reset the device to match the value of the new variable before executing a control action.
Additional Information:
When switching between variables, the control should automatically display the current value of that variable and position the input device consistent with that value. The user should not be required to adjust the input device to match the current value of a new variable. For example, if variable A is currently set at a value of 100 and variable B at 10, when selecting the latter, the user should not be required to adjust the input device to the 10 position before executing a control action.