FooEvents supports the WooCommerce variable product setting. This can be used for any extra event selections or ticket types.
We’ve published a blog post on how to create different ticket types which explains how to do this in simple steps: https://www.fooevents.com/2018/03/07/create-different-ticket-types-fooevents-using-woocommerce-variations-attributes/
If you’re interested, you can also see an example of how the ticket type options would be displayed to the visitor on one of our demo sites: https://demo.fooevents.com/product/theme-park-access/
Please refer to the WooCommerce variable product documentation for further information: https://docs.woothemes.com/document/variable-product/