The Benefits tab allows for the setup for each benefit within your benefit structure to be included in the event. You will want to mark each option that applies to each benefit within the event. Any benefit you want to show in your event should be checked to be included.
*Note that if you are configuring your event to require an event date you will only want to enter a number into the event completion days (properties override) column if you chose to override the event days listed on the properties tab. If you do not want to override you will want to leave that column blank.