To create a template you must install and activate Control Events, Elementor plugins.
Control Events you can install from here and Elementor you can install here or manually

On your page, you can setup Menu, header style from here

Supported Elements

• Hero Sections
• Event Ticket
• Event Videos
• About Event
• Event Speakers
• Event Pricing Table
• Event Schedule
• Event Gallery
• Event Countdown Clock
• Event Contact
• Event News /Blog
• Event FAQs
• Event Features
• Woocommerce Ready Shop
• Leaflet Map
• Event Sponsor
• Event Subscription