Process Data
Use the Process Data panel (> Process Data) to select the data channel information (processes) you want to appear on the rate control tab drop-down.
Data channels with a gray background (with check mark) are considered non-process channels and they automatically appear on the drop-down—you cannot change this display. Data channels with a white background (processes) are those you can select to appear and you can select up to five additional channels. For example, in the screen below, 'MATRL 1 (Channel 1 Control)' is a non-process data channel, and 'Ch1 Actual Width' is a process data channel, and the number of additional selected channels appears below the list (1 of 5 shown below).