'form.group_edit.24_hours' => '24 uurs',
// TODO: translate the following.
// 'form.group_edit.display_options' => 'Display options',
-'form.group_edit.show_holidays' => 'Toon vakantiedagen',
-// TODO: translate the following.
// 'form.group_edit.holidays' => 'Holidays',
'form.group_edit.tracking_mode' => 'Bijhouden',
'form.group_edit.mode_time' => 'tijd',