Preset Lighting Blueprint

Place the Preset Lighting Blueprint in the scene. You should have in the scene a Lighting Source (Sun), Sky Light, Sky Atmosphere, Exponential Height Fog, and Volumetric Cloud. Then you should select each parameter from the Initialization category or you can just press "Auto Assign".

Preset Lighting Blueprint is a useful tool for quickly updating the lighting in a scene. It stores multiple presets of Lighting Source (Sun), Sky Light, Sky Atmosphere, Exponential Height Fog, Volumetric Cloud, and Volumetric Cloud Material, allowing you to easily switch between different lighting setups in the editor by changing "Preset Lighting Type":

You can add your own lighting preset in the Lighting Preset Category. You can edit Lighting Source (Sun), Sky Light, Sky Atmosphere, Exponential Height Fog, and Volumetric Cloud then press "Add New LP" to add new lighting preset, or "Set Current LP" to overwrite the current one.

The data for each lighting preset is stored in the "Lighting Presets" array:

Initialization

Place the Preset Lighting Blueprint in the scene. You should have in the scene a Lighting Source (Sun), Sky Light, Sky Atmosphere, Exponential Height Fog, and Volumetric Cloud. Then you should select each parameter from the Initialization category or you can just press "Auto Assign".

Post Processing Presets

As for the lighting part, the post-processing preset part is useful for quickly updating the Post-Processing preset. It stores multiple presets of settings of a Post-Processing Volume actor.