Each main preset within Noisy is made of two different sound layers incl. their gain and octave settings, and an effects page common for both layers. The two layers offer the exact same tools for sound design, but can have entirely distinct settings.
Each sound from the Factory main presets contains two carefully designed layers, which are directly available from the two layer preset browsers.
An easy way to create unique new sounds is to combine any two layer presets from the layer preset browsers, adjust their octave ranges and volumes and save them as a new main preset.