Connect your synth via USB. Enable your browser for MIDI access (Safari not supported). If no midi-enable pop-up is present, click the "Enable MIDI" button in the top right of your browser.
Your device should show up in the Select MIDI device screen.
You can now use the sliders to edit your patch.
To save a patch, click down on 'SEL' enter button on the UB-1. Caution: This will overwrite the current patch.
Happy editing!