How to limit access to articles in a category

Hello
I have a subscription to the CB Subscriptions module.
I want to sell access to a group of articles that I put in a category.
I would like subscribers to have access to more than one category via subscribing to each separately.
I might have 30 such subscription offerings.
I have been able to do with the Joomla access control by creating a separate access type under "restricted" for each such subscription.
However, there seems to be a way to restrict access on a category basis also and I cant find how to do that.
Help appreciated.
Scott

Ensure CBSubs Content is installed and published. Next edit your plans within CBSubs > Plans and under Integrations > Content you can control access to content categories, articles and menu items. If you need more advanced control check the Integrations > Extensions tab where you can control access to entire extensions or even specific URLs.