Events+ - there is no Excerpt field on "Add Event" admin page

I have been working with Nastia on an issue, and realized that the problem lies somewhere else. So I'm creating this ticket to avoid confusion with the original issue.

On the Events >> Shortcodes page, there is an "excerpt" argument along with a "character" limit option: [eab_calendar show_excerpt="yes" excerpt_length="50"]

However.....

* I cannot create an excerpt at all when creating an event. There is no excerpt field.

* There is no option to add "excerpt" to the admin screen from "Screen Options".

So either the instructions are wrong, or the excerpt field is broken.

I have tested this on my main site, and on a vanilla site with no plugins.