You can do so by clicking on the title of your project. From there, you will be directed to your project brief. But make sure that you do so before you assign the project to the writer. Subsequently, you can communicate with the writer via the comments section of your project.
(insert screenshot of editing content brief)
(insert comments section of assignment)
If you are looking to change your order of content (topic or article length), do chat with us or write to us at email@example.com and we will look into your request as soon as we can.