When connecting to eLab from a Mac, using Ctrl + Click may not function as expected. Use the following solution to allow a secondary / right click in the eLab environment when connected from a Mac.
1. Go to your Mac's System Settings by clicking the icon from your dock or by selecting the Apple menu
> System Settings...
2. In the sidebar select Trackpad. If you are using an Apple Magic Mouse, select Mouse from the sidebar instead.
3. In the Trackpad menu, set the Secondary click to Click with Two Fingers.
The secondary click is now set and you should be able to perform the right click action in eLab by clicking with two fingers on the trackpad.