Saving custom presets is a huge timesaver, just click the Save Filters Preset… button in the lower-right corner of the Side Panel.

Aurora QuickTip: Control Your Custom Presets | Skylum Blog

However, for even more control, you can modify any saved preset.  Just open up the Preset Panel and browse your User Presets.

From the pop-up menu on a user preset you can choose:

Update with Current Settings – Update the selected preset with the new settings chosen in the Side Panel.
Delete – Removes the current User Preset.
Rename… – Changes the name for the selected User Preset.
Show in Finder – Reveals the individual preset in the Finder or Windows Explorer so it can be backed up or shared.
Export… – Allows you to save (and rename) a preset in a new location

Aurora QuickTip: Control Your Custom Presets | Skylum Blog(2)