You can use multi-track presets, for example, when recording setups that require several microphones (a drum set or a choir, where you always record under the same conditions), and you have to edit the resulting tracks in a similar way. Furthermore, they can be used when working with layered tracks, where you use several tracks to generate a certain sound instead of manipulating only one track.
If you select more than one track when creating a track preset, the settings of all selected tracks are saved as a single multi-track preset. Multi-track presets can only be applied if the target tracks are of the same type, number, and sequence as the tracks in the track preset. Therefore, they should be used in recurring situations with similar tracks and settings.