Two alternatives to jQuery UI that have search input:
https://github.com/select2/select2
http://selectize.github.io/selectize.js/#demo-country-select

There are also discussions to replace jQuery UI autocomplete with Select2:
https://www.drupal.org/node/2346973

Comments

matsbla created an issue. See original summary.

matsbla’s picture

matsbla CreditAttribution: matsbla commented
Title: Chaneg from jquery.selecmenu to select2 or selectize? » Change from jquery.selecmenu to select2 or selectize?
matsbla’s picture

matsbla CreditAttribution: matsbla commented
Status: Postponed » Closed (won't fix)

Now made another module for this; Select2 Boxes.