As this remains the thread that ranks in search engines for “Reusable field group ACF”, it might be nice to mention the following here:
Version 5.4 will include a new “Clone” field.
– From John Heubner’s preliminary work on https://github.com/Hube2/acf-reusable-field-group-field
See: https://www.advancedcustomfields.com/resources/clone
