Editable Select List

While happy to see the core integration of autocomplete, I believe that an equally important option is to facilitate an editable select list. An editable select list facilitates some key database functionality for fields that change and/or are used frequently, but don't merit an entire table to themselves. The idea is to take a column of attributes from a table and populate the select with this data whilst simultaneously allowing the user to type a new entry, auto completing the text while typing if matching chars are found from a string in the list.

This functionality was provided to Dreamweaver developers years ago (around 2001) and was a very useful feature for demanding forms and data entry applications.