Hello!
I'm export my collection to Excel files as Album per line. I use tags like ARTIST, ALBUM, YEAR and so on. Is there a chance to export total folder size where the album is located? I know we have _FILE_SIZE tag. Is there any chance to create something like FOLDER_SIZE? 
Or maybe there is a script that can count total size of directory where exporting files located?
The same thing with LENGTH tag, would be great to get TOTAL_LENGHT or something like this? Is it possible?
Thank you in advance for your attention, guys!