I would like to edit an existing entry by adding new attachments at each call of elog from the command line.

If I issue

elog -h localhost -p 8XXX -l test -f /path/to/file_0.pdf -e N -x

and then 

elog -h localhost -p 8XXX -l test -f /path/to/file_1.pdf -e N -x

file_1.pdf replaces file_0.pdf, while I'd like entry N to have both pdfs.

Is there a workaround?