"Folder rename" feature needed.
Surely I could use such patterns under Tage->Filename convertion:
..\%artist% - %album%$num("%track%",2) - %title%
But such way I got empty (old) folder, or what's worser I got mp3s within the new folder and logs/covers/playlists/etc within the old one. Additionally, I must change current directory to continue editing of the files moved, that takes time to locate new hide-out of the files.
UPD: solved via Florian