Custom field group on CPT under a custom taxonomy term

Hi,

I've gone through the documentation and searched the forum. I may be missing something; but, I can't figure out how to create a custom field group that applies only to custom posts that fall under a specific term.

The most I was able to do was set fields for a whole taxonomy, which isn't what I was trying to accomplish.

Example:

Custom post type is Events
- 'Events' has its own custom field group
- 'Events' is under the "event-category" taxonomy
-> The Event Category taxonomy has several terms: Qualitative Research Summer Intensive, Mixed Methods Camp, Fall Seminar Series, etc.
--> Qualitative Research Summer Intensive needs its own custom field group in addition to the one on 'Events'

It looks like ACF + CPT UI offers this functionality; but, I'd much prefer to do it via Meta Box. How would I go about doing this?

Thanks.