I noticed when I have a drop down field that has Allow empty equal to true, that the drop down still displays all values returned from the SQL select statement?

Perhaps I could do:
select countryid,countryname from cms_country
union select null,'(select one)'
order by countryname asc

...i.e. add the blank

Or maybe a feature could be added to have drop down display "(select one)" always at top if "Allow empty" is set to true