zentao/extension/ipd/execution/ext/lang/en/flow.php

<?php
$lang->execution->setLaneFields = 'Set Lane Field';

$lang->kanbanSetting->laneField     = 'Lane Field';
$lang->kanbanSetting->mode          = 'Mode';
$lang->kanbanSetting->subStatus     = 'Status to Display';
$lang->kanbanSetting->emptyColumns  = 'Must have at least one checked status.';
$lang->kanbanSetting->subStatusTips = 'Please set the display column and color under the task board and the Bug board separately.';

$lang->kanbanSetting->laneFields['status']    = 'Status';
$lang->kanbanSetting->laneFields['subStatus'] = 'Sub-status';

$lang->kanbanSetting->modeList['task'] = 'Task';
$lang->kanbanSetting->modeList['bug']  = 'Bug';