Before proceeding you must stop the channel by deactivating the checkbox in front of it. Stopping the channel will also stop the Just Out MAIN engine and therefore the final output in case there is no redundant engine available.
You must unlock the Just Control Configuration window to make changes.
Just Control provides two areas with channel settings, the Just Control Configuration window and the Settings tab of the MultiViewer interface.
Just Control Configuration window - provides more basic settings and the channel has to be stopped before a setting can be changed.
Just Control MultiViewer Settings Tab - provides additional settings and the settings there can be changed while the channel is running.