(Other tuning goal types, such as loop-shape or stability margins, require you to specify
only one location for evaluation. The procedure for specifying the location is the same as
illustrated here.)
Under Specify step-response inputs, click Add signal to list. A list of available
input locations appears.
If the signal you want to designate as a step-response input is in the list, click the signal
to add it to the step-response inputs. If the signal you want to designate does not appear,
and you are tuning a Simulink model, click Select signal from model.
In the Select signals dialog box, build a list of the signals you want. To do so, click
signals in the Simulink model editor. The signals that you click appear in the Select
signals dialog box. Click one signal to create a SISO tuning goal, and click multiple
signals to create a MIMO tuning goal.
Click Add signal(s). The Select signals dialog box closes, returning you to the new
tuning-goal specification dialog box.
Specify Goals for Interactive Tuning