You can save different user profiles. The information saved into the XML file includes: settings selections, window position, Preset favorites, Preset hotkeys, Sprite effects, open & closed queue windows (name, size, position, Preset lineup, linked Sprites, deck number).
You can also organize the Presets into your own categories and subcategories using the following folder architecture.
--- Category: Folders placed directly into the Presets folder are treated as the main categories . A section label is automatically created to help easily identify categories within the library window. They are also listed within the ‘Active Preset Locator’ context menu.
--- Subcategory: Any nested folders within the main category folders are treated as subcategories. Bookends are used to separate all subcategories within the library window.
NestDrop will index all Presets found within the <Plugins\Milkdrop2\Presets> folder. It will also index any nested folders. You can install your own Presets to this location.