Currently, Send As Attachment allows for specifying what columns to be included, in the Options dialog for PDF. However, in my opinion, this should be outside on the "Send As Attachment" dialog, so that the specified columns get output/exported to PDF as well as Excel.
Further, it would be very much useful, if on the "Send As Attachment" dialog, one can specify the existing Filter, which determines what rows to output/export to PDF and Excel.
thanks!
-Yasutaka