In order to customize your author list, click on the Manage Collaborators or Share button and follow the prompts, as shown in this gif:

In the Author Management Dashboard, you are able to:
edit the display name of every coauthor
pick one or more affiliations for each author (or create a new custom display affiliation)
add a named author (who will not be invited to Authorea)
arrange the author order
delete coauthors
Updated on: 05 / 01 / 2020