WordPress plugin which extends the functionality of the Advanced Custom Fields Plugin Pro.
http://www.advancedcustomfields.com/pro/

Adds a duplicate button to ACF Repeater Fields.

Tested up to WP 4.9.x and ACF Pro 5.7.4.
Compatible with ACF 5.x

Requires at least PHP 5.3.

• Add repository source : { "type": "vcs", "url": "https://github.com/mcguffin/acf-duplicate-repeater" }.
• Include "mcguffin/acf-duplicate-repeater": "dev-master" in your composer file for last master's commits or a released tag.

• Head over to releases
• Download 'acf-duplicate-repeater.zip'
• Upload and activate it like any other WordPress plugin
• AutoUpdate will run as long as the plugin is active

• Install Andy Fragen's GitHub Updater first.
• In WP Admin go to Settings / GitHub Updater / Install Plugin. Enter mcguffin/acf-duplicate-repeater as a Plugin-URI.

• cd into your plugin directory
• $ git clone [email protected]:mcguffin/acf-duplicate-repeater.git
• $ cd acf-duplicate-repeater
• $ npm install
• $ gulp

• Issues, Pull Requests, Feature Requests: Are always welcome. (But please keep in mind, that I will only support ACF and ACF Pro core fields.)
• 3rd Party Field Support: In order to keep a lean codebase and to avoid maintenance work, I won't add support non-ACF-fields. I would have to keep track of dozens of plugins. However since version 1.2 it is no rocket science to add support for your own fields: Third Party Field Support.
  Please feel free to share your knowledge in the wiki.