After an Author has submitted an Abstract to your event, you can change this submission to Papers, which allows them to uplaod pages and you to request changes to these papers.
To Change an Abstract Submission to a Paper:
In the event section
Edit the event that the abstracts are for:
Go to the Event Dashboard
Click on Abstract => Submission
Check the box next to the Abstracts, click on Change Status and select Papers.
This will now allows the Abstract Author to upload Papers. It is recommended that you personally contact the Author to let them know this. We are currently preparing an automated email that will be sent from your account with the status is changed and will notify you when this function is ready.