Custom Fields

Pardon? Collect during subscription? Like what additional data?

yes, collect during subscription data.

Like another name, date of birth, select from a dropdown, etc

This sounds more like registration additional data not subscription.

In emerald registration and subscriptions are separated. Emerald does not register users. And this is exactly the reason why. So you can use any other registration extension like Community builder, JomSocial, ...

No, that's not what I'm looking for.

I need the user's information separately, and attached to their Joomla or CB account, whatever.

Then with each individual subscription they make (even if to the same item) I need to collect another separate set of information that includes what I described above and some more.

Hmm... I afraid there is nothing like that in Emerald.

Alright, thanks Sergey.