Is there any way to only decompile part of a BSA archive?

I tried BSAopt and it seems to be an all or nothing situation. Is the file structure such that you have to extract the entire contents of the archive or something? I really want to take a look at the Bloodskal blade script to copy onto another weapon but I don't want the entire uncompressed contents of the Dragonborn DLC clogging up my hard drive.