As an Admin, you have the ability to feature particular sessions. Doing this will pin it to the dashboard of the Schedule Builder portal of your event - basically, the front page for your attendees.
Setting a Featured Session
From the Admin portal, click on Sessions > All Sessions:
Scroll, filter or search for the Session you wish to feature and click on the Session Details icon next to it:
Scroll down the Session Details page until you find the Attributes setting. Make sure the box next to Featured is checked:
After hitting the Save button, your session will appear on the main dashboard of your event's Scheduler Builder.