Add following code in your theme’s (child theme’s if any) functions.php

add_filter( 'fep_get_option', function( $value, $option, $default, $is_default ) {
	if ( 'gm_groups' !== $option ) {
		return $value;
	}
	if ( is_admin() && 'users' !== @get_current_screen()->parent_base ) {
		return $value;
	}
	if ( ! is_admin() && 'settings' !== @$_GET['fepaction'] ) {
		return $value;
	}
	
	// Change this with which role you want to give access to all groups
	$allowed_roles = array( 'editor', 'administrator' );
	
	if ( array_intersect( $allowed_roles, wp_get_current_user()->roles ) ) {
		return $value;
	}
	
	// Change this with your desire groups slug
	$groups = array( 'test1', 'test2' );
	
	foreach ( $groups as $group ) {
		unset( $value[ $group ] );
	}
	
	return $value;
}, 10, 4 );

Change roles and groups as required