The same toolbar is present in both the ‘Presets’ and ‘Fixture’ views, but buttons that are not applicable will be disabled while in ‘Fixture view’.
Presets
This view is the primary working view for documenting presets.
Fixture
This view is primarily for viewing the preset documentation for a specified channel. It is useful if a fixture is being swapped out in the rig, as you can see all the presets that would need to be checked and perhaps updated, on stage.