I have purchased a theme named “TicketBox – Event Tickets WordPress Theme”.
considering the following functionalities in this theme.

1. Ability to add an event and sell tickets ( admin for the seller )  — this is an external link when I bought the theme, leading to theme URL.

2. The normal user can buy tickets ( admin for the normal user to check his/her orders )

Is there an admin for customers who purchase tickets, or they act as a guest?

3. Ability to set commission on tickets ( seller can be charged some percentage for each sale )

I saw this functionality working in the theme demo site https://skiptheboxoffice.ca/ , but unable to find it after I bought the theme.

4. Payment gateways supported ( PayPal and Auth.net )

Does it support?

I didn’t get which plugin is having all this functionality, or I need to buy another plugin to make it work. Can you please help me to get the suitable one.
Thanks.