The groups do not work for nesting. Nesting suggests that an attribute has further attributes. Grouping only groups, causing you to do this for naming labels and causing VERY long record lists:
This isn’t something that’s possible at the moment. Properties can be added to custom property groups, but the groups don’t affect how the data would actually be formatted for a contact record.
Can you tell me more about what you’d be looking to do with this?
There’s a few useful scenarios I can imagine using this Eg. subscription { tier: , expiry: }, and notifications{ notification_type: true, notifcation_type_2: true}
This is much more organized and keeps parameters cleanly grouped and logically named for the marketing team.