I am about to purchase the pro version, but I have some questions beforehand. One thing I would like to know if it is possible to create albums with subalbums, where the root is password protected, and the others are not?

I would like to have a parent folder which is password protected. the subsequent galleries then should be available after authentication. I also would be fine if the subsequent galleries would be protected again.

That way I would like to create a logical grouping (different groups of friends, work, ....) Is there a way I can achieve that?