Presets
Every module, generator, controller, and effect has a preset menu in its header. Presets store and recall the settings for that object's type, so a reverb you've dialed in can be saved once and pulled back up on any other reverb, and the factory presets give you a starting point on everything.
Click the preset button in the object's header to open the menu.

The preset menu
The top of the menu names what the object came from: Preset: <name>, Instrument: <name>, or No preset if its settings didn't come from either. Below that, the menu is grouped into submenus:
| Item | What it does |
|---|---|
| Reset to preset… / Reset instrument… | Puts the object back to the preset or instrument it came from, as it's saved in the library, after confirming. Only shown when the object came from one. |
| Presets ▸ | Browse, save, load, and delete presets for this object's type. See below. |
| Instruments ▸ | Generators and controllers only. Swap the module for an instrument, or save it as one. See The Instruments menu. |
| Defaults ▸ | Set what new blank objects of this type start from. See Defaults. |

Browsing and applying
The Presets submenu lists every preset whose type matches the object you opened it on, grouped under Factory, then one heading for each sound pack that has some, then your own User presets. The currently applied preset is ticked.
Choosing a preset applies its settings in place. The object keeps its identity and its input wiring; only its settings change. That means you can audition presets on a module that's already wired into your set without rebuilding anything around it.
Presets in the library
Presets also show up in the Build section of the library. Click the arrow next to a library object to reveal its presets as draggable entries, then drag one straight into your set. Unlike choosing from the menu, this creates a new object from the preset rather than changing an existing one.
Each preset row is labeled on the right with the library it came from: Core Library, the name of the sound pack that ships it, or User for your own. Right-click one of your own presets to delete it with Delete user preset….

Loading from a file
Presets are stored as .spp files. Presets → Load from file… opens a file browser so you can pick a .spp file of the matching type from disk and apply it to the object, exactly as if you'd chosen it from the menu.
You can also drag a .spp file in from the Finder (or File Explorer), which creates the preset's object inside whatever you drop it on. A sampler preset becomes a new sampler, an effect preset a new effect, just like dragging a preset in from the Build library. Preset files inside a bookmarked folder appear in the library's Folders section too, and can be dragged in the same way.
A drop is only accepted where the preset's object type fits, so a module only lights up as a drop target for presets it can actually contain.
Saving presets
Presets → Save current as preset… names the object's current settings and stores them as a user preset for that type. It'll show up under User in the preset menu of every object of the same type from then on. If a user preset already has that name, the button reads Save (override).
User presets are saved as .spp files in Music/Sunhouse/Sensory Percussion 2/presets, organized into a folder per object type, with the name you gave the preset as the filename. Since they're ordinary files, you can back them up or share them with someone else, who can load them with Load from file… or by dragging them in.
Presets → Delete user preset… lists your own presets for this type. Pick one to delete it after confirming. Factory and sound pack presets can't be deleted.
To save a whole module as something you can drop into any set and swap with others, save it as an instrument instead.
Defaults
Defaults → Save current as default… stores the object's current settings as the default for its type. From then on, a new blank object of that type dragged in from the Build library starts from those settings instead of the factory ones. That's handy if you always reach for the same reverb decay or the same sampler envelope.
A default stores the object's own settings and its effects, but never the modules inside a controller. To save a controller with its contents, save it as a preset or an instrument. MIDI Notes Generators and MIDI Kits don't have defaults.
Defaults → Reset default… removes the saved default for that type after confirming, returning new objects to the factory settings.
A default only applies to a genuinely blank library template. Dragging in a preset, dropping an audio file, or pulling an object in from a saved set all bring their own settings, so the default is left out of it.