I have a problem on my site generally with long drop down list. For example I have a long country list and also as example a long language list.

If a user choose his country, he has to search in a long list. Better would be, he could also type in his country and the drop down list is filtered.

In my knowledge this could be done with select 2 (https://select2.org/getting-started/basic-usage) see 1. example or with html5 datalist (https://developer.mozilla.org/en-US/docs/Web/HTML/Element/datalist?retiredLocale=de)

In the multi drop down list categories you are using already select2 but not in the location drop down list.

I tried to add the code

“add_action( ‘wp_head’, function () { ?>

Eric H