FabFilter One Help
The included presets give a great overview of what you can do with FabFilter One. You can either use the presets as they are, or tweak them further to create your own unique sounds.
The preset button shows the name of the current preset. If you have changed the preset by adjusting one or more parameters, the name is dimmed to indicate that this is not the original preset anymore.
Loading a presets can also be done via MIDI, using Bank Select and Program Change messages. Click Options > Enable MIDI Program Changes in the preset menu to enable or disable this feature. When enabled, the corresponding bank/program numbers are shown in front of the preset name (for example: (2/65) My Preset). This means that you can load that preset by first sending a Bank Select message to select bank 2 and then sending a Program Change message to select program 65.
Important: All the presets in your preset folder are numbered automatically, starting with bank 0 and program 0. This way, you are able to access any of the presets via MIDI. However, this also means that when you add new presets to the menu, bank/program numbers of other presets might change. Be aware of this when recording program changes in a session!
Next: Saving presets