1. In the event dashboard, click on the "Content" from the sidebar.
2. Next click on the "Agenda" feature page.
3. Click "Edit" on the session card you want to add the icon to.
4. Access the 'Session Thumbnail Image' section under Additional Info and upload your preferred image for the session Icon.
5. Here you get to select any existing thumbnail options, and if not you can add a new image you can by Clicking on "Add New Image".
6. After adding the Image, add a Name to label the uploaded image
7. Click "Save" to save the session with its new Thumbnail Icon.