You must have the following plugin to make “Meta Box Group Field” work. Works with the latest version 4.3.10
What is Meta Box Group Field?
Meta Box Group Field is Meta Box Add-on that extends a new field named ‘group’ for collectively grouping over 20+ supported fields and able to clone them.
Supported Field Types
- Meta Box by Rilwis
Version 1.0 on June 17, 2014 - Initial Release Version 1.0 on June 23, 2014 - Fixed a minor bug