There is a fork of the plugin that fix the issue of adding n number of instances in a flexible field :
https://github.com/mvpdesign/acf-reusable-field-group
That actually seems to be a fork of a different plugin than the one mentioned above (created by @beneverard). I haven’t tried it before but it looks interesting thank you, I will try it out on my next project (that requires it) and report back.
This is still a feature I desire greatly from ACF and would love to see it as part of the core functionality (or happy to pay for a premium add-on).
I’m not familiar with the Buckets plugin but no I don’t think that does what we are after. It seems to fulfil a purpose similar to the ACF Options Page add-on.
Here’s the code I created.
https://github.com/theideabureau/acf-reusable-group-field
This plugin works well and is very handy. However I’ve just run into one caveat – when using the Reusable Group Field within a Flexible Content Field you can only use it once per page.
If you try and use a Reusable Group in more than one row it doesn’t seem to store a separate database entry for each instance of the group.
This would be such a great feature to have as it would give ACF a really nice modular approach.