Add autocomplete function to a field

Hello,

we would like to implement fields where the user can enter text manually and then gets available values, similar like with list fields.

But it should be possible to enter values too, that are not part of the list.

How is this possible in Aras?

The request is similar as this thread from 2014:

https://community.aras.com/f/archive/2559/developers-forum---how-to-use-jquery-autocomplete-in-a-form

Here you can see in action what I mean:

http://jsfiddle.net/phusick/N8DqG/