leaky-paywall-setting-management.php

<?php 

// adjust who can edit and manage the Leaky Paywall settings menu
// use WordPress capabilities https://wordpress.org/support/article/roles-and-capabilities/
add_filter( 'manage_leaky_paywall_settings', 'zeen101_adjust_lp_setting_management' );

function zeen101_adjust_lp_setting_management( $cap ) {

    // allow editors
    return 'delete_others_posts';

    // allow editors and authors
    return 'edit_posts';
}