In workshop1 - 'the first script', it states, "Start Zorro, select Workshop1 in the Script dropdown menu, then press [Edit]. The strategy script editor opens up and shows you this script:".
I press the Edit button to see the script but nothing happens. The strategy script editor does NOT open up. The Test button works.

This works correctly for me, and it always opens the respective script file.

OK..I closed Zorro and tried again. The editor now opens.