1. Log into your Facebook business page and create an event.

2. Choose Class. This allows to schedule a live stream within the event.

3. Press Paid.

4. Enter Name, time of the event, duration, etc. Then Press Next at the bottom.

5. Enter a fee for attending the event (watching your live stream). Press Next.

6. Choose Present a Live Broadcast and click Publish the event.

7. Then you'll see a button to set up a live video. Check this tutorial on how to schedule a live stream within your live event.