Staff member

1: Use Staff member

You can add a username to scan QR Code ticket via APP Mobile.

User Name: You have to register a new account or use your account in website. The User's name is account that login the site.

Staff Member

2: Customize field for this tab

2.1: Customize in template

Ccopy file 
wp-content/plugins/eventlist/templates/vendor/__edit-event-api-key.php 
to
wp-content/themes/meup-child/eventlist/vendor/__edit-event-api-key.php
and edit code in that file

2.2: Customize by Hooks

a) Remove "Staff member" tab when make new event

You can add bellow code in functions.php file in child theme

add_filter( 'el_create_event_show_member_tab', function(){ return false; } );