Swiping from the main screen to the right gets you to the Preset Selection dialog. Each preset is represented as a button with a state. The currently active preset is shown with a speaker symbol.

The screen shows up to 4 presets per page. If there are more presets present, swiping right will update the screen with the next 4 presets.

User presets are shown before the system presets.

To select a preset, simply push the button and wait until the speaker symbol changes position.