This is an old revision of the document!
Open Focusrite Control Software – check shortcut on desktop.
The outputs can be configured in the Output Routing menu:
The Inputs cannot be controlled by the Focusrite Control panel, this has to be done in the DAW (i.e. Cubase):
Focusrite Scarlet 18i20 Front Panel View:
Focusrite Scarlet 18i20 Back Panel View: