Tell us what you are trying to do?
Understand what RFG are and how they could be used. Your YouTube videos explain how to create them but I would like some concrete examples of why and how you would use them.
Is there any documentation that you are following?
Your YouTube channels and blog articles.
Is there a similar example that we can see?
What is the link to your site?
For example, you want to have a Post Type "persons" and a Field set for "address".
That Field set has a house number field, a street name, a floor number, town, maybe even a maps address field.
You want that group of fields (The Address) to repeat because persons can move houses, towns, cities and countries, but you would like to keep a record of those old addresses.
That is where RFG (Repeatable Field Group) comes in since you can repeat an entire set of fields.
Or, you want to store the addresses of business with many shops.
This could be one of the approaches to create this data, using RFG.
Basically always when:
- you have a group of fields that should be to be filled more than once
- the data is not used on OTHER posts but UNIQUE to the one post (otherwise use Post Relationships)