If I could avoid deleting an instance, I would really prefer to do that. We really need to keep a trail of transaction history while not going over the 1GB data cap. I did find a workaround for viewing attachments outside of a session using a “show url” command with a custom function:
unique file name
Since there is a way to view the attachment outside of an instance as it is assigned a unique identifier (EX: B51BAuggAAggdABM), I’m wondering if you could also delete that file data with another command or detach button (so long as you properly reference the file)?