This is a simple plugin to demonstrate how to add Selectize support to Gravity Forms Drop Down and Multi Select fields.

During testing it has been working pretty fine out of the box using preview and the Twenty Twenty-One theme, both for desktop and mobile devices. But it may require some CSS tweaks for your theme, this is something you will need to test.

You can also replace Selectize with Select2 or any other similar third-party script easily by changing only a few lines.

• Activate the plugin.
• After activation you will see a new Enable Enhanced Select setting under the Appearance tab for Drop Down and Multiselect fields.

As said above this is only an example. Feel free to fork it and use it as base for a more elaborated project.

Below you can see a recording of an Android phone using drop down and multi-select fields where Selectize is being applied by using this add-on in a default WordPress installation using Twenty Twenty-Three theme.