You or your students want to screen share with macOS during an alfaview session? The corresponding person has VIP rights in alfaview, but screen sharing does not work? Then follow this guide to solve the problem.
What you have to do
Open the system settings and select the "Security" menu item here.
The "Security" settings window will open.
Click the "Privacy" tab and then select the "Operating assistance" item in the menu on the left.
Activate the checkbox in front of alfaview in the list of applications.