1. Go to your event builder
2. Use the + icon, next to your poster event, to add a poster presentation (the amount of presentations you can add will depend on your subscription plan)
3. Enter a poster presentation display name
4. Enter a poster presentation description
5. Upload an image to represent the poster presentation (16x9)
6. Add a download (this can be an image 3MB, a PDF 5MB or a video uploaded as a MP4 or linked from YouTube/Vimeo. Images, PDF's and videos become downloads.
7. Add a presenter (this function is not available yet) 

💡TIP You can add as many downloads as you like to 1 poster presentation

Related Articles:

Poster Events Overview

Adding a Poster Event

Poster Events Presenters