Feature Request: control sort order in dropdown fields

Feature Request: control sort order in dropdown fields

This one is pretty simple. Dropdown fields have an option for "Alphabetical order". I've finally found a client who has a giant list of values, all DATES, and so to find anything in 2017, for example, the user has to scroll through many pages. I'd like to just sort in descending order, not ascending. It would be nice if you offered this option in the future.

Thanks!
Bruce