Speakers/Presenters cannot directly upload any information into the app as only the event organizers have that ability. You can also contact the organizer to upload your material for you.
Or, if the event organizers provided the Speaker link to you, you can use that to upload one document per session. You can find the Speaker link on your dashboard under Event Content > Speaker Center.
Through the app, you will be able to share links through messages or in the Community Board.