Yes, set the refresh rate to 120hz in control panel, set "Preferred refresh rate" to Highest available and it will switch to 144hz in game and back to120hz at desktop. You can set ULMB mode for desktop and when a game starts ULMB turns off and gsync turns on with 144hz.
Also allows your graphics card to set at idle clocks on desktop this way.
Thanks. When you say "You can set ULMB mode for desktop" I assume you meant set the Swift to ULMB mode via settings on the Swift?