Seahorse has no option to export/import passwords

[cogset]

Seahorse 3.15.90-0ubuntu1 in Ubuntu15.04 still has no option for exporting and importing stored passwords ( see: bug https://bugs.launchpad.net/ubuntu/+source/seahorse/+bug/550101 and comment https://bugs.launchpad.net/ubuntu/+source/seahorse/+bug/550101/comments/19 ) : since it can manage importing and exporting of gpg keys, and it also has this additional ability to store encrypted passwords, it would make sense to also manage these stored passwords as well.

That would greatly add to its usability as a password manager as well, in addition to being a gpg key manager.