We'll create fresh WordPress site with Select and Multi-Select Field for Contact Form 7 installed. You have 20 minutes to test the plugin after that site we'll be deleted.
This plugin uses Select2 , a jQuery plugin which replaces traditional select boxes with a customizable one with a capability for a search on the contact form 7.
This plugin generates both single select and multi-select field and allows us to add placeholder, specify width and add required input validation.
Contact Form 7 by Takayuki Miyoshi is required for this plugin to work.