Submit changes to Elevent to update your listings.
From the listings page (https://hosts.bookelevent.com/listings) you can now view all the fields that are on your listings. Additionally you can update instantaneously if the listing can be booked or not, the duration, minimum participants, maximum participants, and price.
For any other edits you can submit them through the manage listing page which is a button at the top of the listings page (https://hosts.bookelevent.com/listings). The manage listing page is reached by going to Account -> Listings -> Manage listings (button)
You can do this by either uploading a template or choosing to update your listing.