the command Edit > Undo to cancel the most recent
command used in the generation of a text. You can use this command
repeatedly, with the commands being cancelled in reverse chronological
order (the last command, the before-last command, etc.). Instead
of using the menu, you can also click on the
button on the toolbar, or use the shortcut keys Ctrl+Z.
Edit > Undo allows you to go back as far as the last
action before the use of the command File > Save Zigzag
Project and File > Save as . However,
once you are at step 2 in the generation of a text, it is no
longer possible to cancel commands done at step 1. Generally
speaking, such canceling of commands happens in "blocks."
For example, when you use the command Tools > Question
Bank and create three multiple choice questions, canceling
the command will delete all three questions (not only the last
want to come back on a previously deleted command, select Edit
> Redo or click on the
button on the toolbar. The command Edit > Redo can
also be used repeatedly.