With DisplayFusion, you can set hotkeys to toggle the default communications/recording devices (see the Audio Devices section on the Settings > Functions tab). The hotkeys just switch to the next or previous device.

Alternatively, you can switch to a specific device in the DisplayFusion tray menu, in the Audio Devices sub-menu.

If you also use Monitor Profiles, you can assign specific audio devices to each profile in the Manage Monitor Profiles window

Hope that helps! Please let me know if you have any further questions.

Thanks!

It's available in the current stable version (6.0). You should be able to see the Audio Devices sub-menu when right-clicking a DisplayFusion taskbar, or the DisplayFusion tray icon. In the Monitor Configuration > Manage Monitor Profiles window, you should also be able to assign Audio Devices to Monitor Profiles.

Please let me know if you still run into any trouble at all.

Thanks!