Field order for date entry
This is a i18n option! i18n options can not be set directly on a per-instance basis, you must include the "override" directive, and properly camel case the new name - (i.e. overrideDateFieldOrder). For more information, please take a look at the Localizing Datebox section.
Capitalizing “M” for month in “datebox” mode will enable string representations (short months) instead. Note that this will break for any locale where the short string of two months is identical.