The wpcrm_system_user_role_options filter returns the access level user roles used in the WP-CRM System > Dashboard > Settings tab. By default the filter returns an empty array.

The filter is used to add the Administrator, Editor, Author, Contributor, and Subscriber user roles.>

add_filter( 'wpcrm_system_user_role_options', 'wpcrm_system_select_user_roles', 10 );
function wpcrm_system_select_user_roles( $array ){
    $array = array(
        'manage_options'    =>    __('Administrator', 'wp-crm-system'),
        'edit_pages'        =>    __('Editor', 'wp-crm-system'),
        'publish_posts'        =>    __('Author', 'wp-crm-system'),
        'edit_posts'        =>    __('Contributor', 'wp-crm-system'),
        'read'            =>    __('Subscriber', 'wp-crm-system')
    );
    return $array;
}