I have a custom drop-down field for Joomla articles with a country's provinces.
I have created a personalized user group, I want that when registering or choosing a subscription, they can choose:
A province Free from the drop-down menu
and if they want, for each additional province they have to pay example 5 euros per year to read the articles.
So it would be, a free choice and the other additional paid choices, all with a single custom drop-down field or checkbox.
Obviously, this will be the field of my provinces, which will act as a filter for the articles to be read for my custom group
Can this be done in the emerald settings?