Used on mono tracks. Inserts that occur on a track after a stereo insert are automatically used in stereo as well.
Used on stereo tracks. A stereo hardware I/O insert sends the signal to an input/output path.
Used to return a stereo effect from a mono source. Certain plug-ins (such as D-Verb) let you generate stereo output from a mono channel. A track made into stereo in this way has panning controls for each channel of the stereo signal. Any inserts that occur on a track after a stereo insert are automatically used in stereo as well.
Used on stereo or greater-than-stereo multichannel tracks when a multichannel version of the plug-in is not available. Controls for all channels are linked by default so that you can adjust them in tandem. You can unlink controls for independent adjustment using the Master Link button. See Linking and Unlinking Controls on Multi-Mono Plug‑Ins.
Used on stereo and greater-than-stereo multichannel tracks. On greater-than-stereo multichannel tracks, the controls for all channels are generally linked together.
