In the Event Description options, there is a field to enter "Overall Registration Instructions".

These instructions appear at the top of your event registration page.

You can also add or edit the Event Description.

This appears at the top of the event page and registration page.

Event Page:

Registration Page:

The Short Description will populate automatically with the first few sentences of the Event Description, but please note- if the event Description is changed, the Short Description DOES NOT automatically update. You will need to copy and paste the new event Description into the Short Description area to update it. This does allow for the Short Description to be different than the event Description- the Short Description appears in Search results and in card and list views of your website calendar.

Search Results on the website calendar:

If you need to add specific instructions regarding the actual registration types themselves, please see Instructions and Confirmation Messaging.