If you are a coauthor you can get started by adding some content to it. Click the Insert or Insert Figure button below or drag and drop an image onto this text.
Papers magic citation feature can be used to easily import references in Authorea.
First download the Authorea style file, and copy it to the Style directory of your Papers library. If you don't know where your Papers library is, you can find its location in Papers' Preferences, under the General tab.