Question about Text Entry widget of phoebus for "Datetime" selector type

[neu lzf via Tech-talk <tech-talk at aps.anl.gov>]

Dear all,

I know the Text input widget of CSS could configure Style to "Classic" and Selector Type to "Datetime" to conveniently input datetime by clicking the popup calendar.

My question is how Text Entry widget of phoebus to change the selector type to "Datetime", it seems there's no such choice for the properties of the widget or which widget of phoebus could achieve this goal. Thanks in advnace.