Searchable Drop Down List

[Crystalzheng86]

I have numerous of tow companies on my list. I create a drop down list but it takes forever to scroll the entire list. I would like to make the list searchable by type a letter. For example, if I want to search for Herndon Towing, I could just type "H" and the option will populate for me. I can't find the solutions from other posts. Please advise. 

[try67]

If you press "H" it should jump to the first item that starts with "H", but it only works for the first letter. If you then type "O" it won't go to an item that starts with "HO", but to one that starts with "O".

However, it is possible to filter the list using a separate text field, using a script. I've created a (paid-for) tool that allows you to do that very easily: https://www.try67.com/tool/acrobat-create-live-filtered-list