Enabling Audio Channels on Focusrite 18i20 (or equivalent)

By default, the Focusrite audio interface only shows the first 2 channels in Windows:

To enable the other channels, right click on the Focusrite icon in the Windows system tray (might be hidden, so click on the up arrow)

Select Expose/Hide Windows Channels

Select the required channels to be used

Click OK

Restart the CameraOne Service (search Services in the start menu, find CameraOne in the list, click stop, wait for the service to stop, then click start)