The ability to create a virtual second desktop is currently not available on macOS when using the ClickShare Button or app, but can be achieved when using Airplay to share your screen to a ClickShare device supporting Airplay casting.
How to create a virtual desktop using Airplay with ClickShare
To see if your Base Unit model supports Airplay casting, please refer [KB7843].
Detailed instructions on how to share to your ClickShare Base Unit via Airplay can be found here [KB6410].
You can use an extended desktop on macOS by sharing to the ClickShare Base Unit via Airplay. Toggle the "Use As Separate Display" to use the ClickShare Base Unit as a virtual second display when sharing through Airplay.
Last updated Mar 19 2020