In this example we have one occurrence with no extras

Add brief description here

In person attendees can attend one or both dates with a maximum of 250 capacity each day.
Online is for 2 days - capacity set at 200
The occurrence capacity is set to 700 with the individual in-person days set at 250 each.

This course has optional extras available

This course has one occurrence but multiple fee structures.

The price will be applied once the fee is selected from the Additional Items.
In the admin area, 'Requires 1 extra' has been set forcing the payer to select a fee.