If I have a list of states or counties or whatever I want people to select, I'd like to be able to create the dropdowns with existing data without having to type each item in manually.

Also, it would be great to have dependent dropdowns.

Use case:

I have two dropdowns: one for states and another for counties. When I select a state from the first dropdown, I want the other to be responsive and only show the counties from that state for me to select from.