Hi Alan,
Thanks for reaching out! You can grab the link to the “Add event” community page from the admin menu at the top of the screen (see screenshot). Then, you can certainly add it as an option on your front-end menu (if you set up a standard WordPress menu, you can do this using the custom link option).
Shortcodes are actually a feature of Events Calendar Pro – they let you display your calendar around your site using a variety of different views and filters. Currently, Community Events does not have any shortcodes that are specific to adding events from the front end. Sorry for the confusion there!
Please let me know if you have any questions.
Thanks,
Jennifer