Is it possible to run script on several workstations simultaneously using multiply vnc connections?
Yes. However, that requires multiple execution licenses. Execution licenses run scripts from the command line.
Yes, additionally if you want to run multiple license from the Command Line AND THEN launch the GUI it is easiest if you make a separate copy of Eggplant (just use the Copy command in the finder).
This works around an Apple limitation where it doesn’t want to launch something that it thinks is “already running”.
(PS - I Love the Avatar)