Participate Mode is a feature in Whiteboard for Windows, which requires:
· Windows OS build version 1903 or later
· Whiteboard version 18.104.22.168 or later
To check the Windows OS build version, go to: Settings > System > About.
To check the Whiteboard for Windows version:
1. Open Whiteboard for Windows.
2. Select the Gear Icon () at the top right corner.
3. Select the orange "i" icon ().