Hello. I need something special. I need a 3-level dropdown as a fields-app.

1st level users can choose country.
2nd level users can select a region.
3rd level users can select a city.

For every three level I want to enter the values themselves.
I need it for redirection/forwarding my users to to a specific page. And user should be able to self-select at any time his forwarding.

Is someone working on such plugin?