Multiple scans with mobile app in MyTicket theme

Hi,I want to buy the MyTicket theme for one event only.Can i configure the theme for only one event? is it compatible with Elementor?Also, in the real life event i will have two people to scan the qr codes. Can that app to scan the tickets in the same time? I mean two phones with the app both will scan, are the scans live updated? I want to know this.Thanks!