Processes each contiguous channel within a selected clip as a separate mono track. For example, a clip comprised of six mono tracks would be processed as six mono tracks.

Processes each contiguous pair of channels within a selected clip as a stereo track. When applied to an odd number of channels, the plug-in processes the last odd, unpaired channel as mono, using the left channel settings of the stereo plug-in. If you want the last track to be processed in stereo, you must select an additional track to pair it with—an empty one if necessary.

For example, a clip comprised of two mono tracks would be processed as a stereo track, with the first mono track processed as the left channel and the second mono track processed as the right channel.