Steps to lose your work:
- Open the TemplateData editor. Be very happy about the new "suggested" parameters feature.
- Add a bunch of stuff.
- Try to add another parameter, but realize that the reason the "Add parameter" button is grayed out. Maybe it was in the list of suggested parameters that I imported?
- Press 'Escape' to get out of this box and back to the main one.
- Groan as you realize that 'Escape' canceled the entire TemplateData editing session, not just the effort to add the one (duplicate) parameter and does not produce an "are you sure you want to lose all your work?" warning.