Crown DCi 8|600N Operation Manual page 28

DriveCore Install Network Series Power Amplifiers
General Purpose In/Out Control Port
Additional state variables can be added to a given control port input by selecting the SV and dragging on top of a previously assigned row of the desired input.
However, once an SV has been assigned and the MODE has been set, any subsequent SV that is added must function in the same MODE. Up to 40 SV's can be assigned to
a given input.
Figure 18 Configuring Input 1 to control Processing Output Faders for Channels 1 – 2, and Input 2 To control Processing Output Mutes for Channels 1 – 2
An assigned state variable can be removed by highlighting and selecting "Remove Assignment" in the upper left hand corner.
Operation Manual
page 28