Example of how to override the capability check on the 'Contact List' tab shown on Event Espresso -> Registrations

ee_tw_filter_contact_list_tab.php

<?php // Please do not include the opening PHP tag if you do not alread have one

// Example of how to override the capability check on the 'Contact List' tab shown on Event Espresso -> Registrations
// This function simply returns false for that cap check unless the current user account has the 'manage_options' cap on the account.
add_filter('FHEE__EE_Capabilities__current_user_can__cap__espresso_registrations_contact_list', 'ee_tw_filter_contact_list_tab', 10, 2);
function ee_tw_filter_contact_list_tab($cap, $id) {
    if(! current_user_can('manage_options') ){
      return false;
    }
}