bp_view_profile_repeaters_print_group_html_start()

function bp_view_profile_repeaters_print_group_html_start () {
    $group_id = bp_get_the_profile_group_id();
    $is_repeater_enabled = 'on' == BP_XProfile_Group::get_group_meta( $group_id, 'is_repeater_enabled' ) ? true : false;
    if ( $is_repeater_enabled ) {
        global $repeater_set_being_displayed;
        
        $current_field_id = bp_get_the_profile_field_id();
        $current_set_number = bp_xprofile_get_meta( $current_field_id, 'field', '_clone_number', true );
        
        if ( empty( $repeater_set_being_displayed ) ) {
            //start of first set
        } else if ( $repeater_set_being_displayed != $current_set_number  ) {
            //end of previous set
            echo "<tr class='repeater-separator'><td colspan='2'></td></tr>";
        }
        
        $repeater_set_being_displayed = $current_set_number;
    }
}