Export the content of a mailbox index to a table

[davidbo]

I needed to compare the content of one mailbox in Mulberry and a mailbox in another e-mail client. In the second e-mail client I could select all messages in the mailbox index and then copy and paste all visible headers into a spreadsheet, which would have been very useful for my purpose, if Mulberry would have supported it too.

In other words, Mulberry should allow copy'n'paste from the index view and the resulting clipping should be plain text TSV/CSV which could easily be pasted into a spreadsheet, database or similar application.