1) Yes, in order to monitor them to keep them secured, Premium is required.
2) Yes, we’ll be implementing recursive subfolder encryption as an option. There’s a long separate thread on why we have not done so yet (briefly: it’s dangerous, and we’ve had some users not understanding the consequences).
3) Yes, it’s part of the same thing. Recursive subfolder encryption/decryption.
Many times, while encrypting/decrypting/erasing a directory with many files and subfolders, I simply don’t know if AC is doing something or has already finished the job. For his peace of mind, and no matter if you move from one app dialogue box to another, a permanent and very visible icon should give the user a crystal clear feedback on what’s going on (in my opinion, though).