Possibility to add properties (subcategories) under subscription type

[paulopes]

I would like to add some "subcategories/focus areas/topics of interest" as an option for the customer to select which are linked to the main subscription type.  

In practice, the idea is to have customers select what interests them the most and create personalised newsletters and marketing emails for that client.

Later on, the customer could visit their email preferences and update his/her interests and a specific "subcategories/focus areas/topics of interest".

So far I have added a new property that the customers can choose while they are registering to the subscription type. However, they won't be able to update it later. 

Is there other marketing people that feel the same need?

[Andreas]

This is a good idea. I have for some time hoped for an upgrade on this as well.

[CNyman]

This is a great idea and a definite need for our marketing team currently.