I wonder if it could be possible to archive one specified plug-in.
Example scenario, when such feature would be useful:
-running high-traffic instance using Piwik,
-install new plug-in that is using daily archiving,
-archive all historical data.
Currently it's only possible by dropping archives for all plug-ins. It's an overkill in most cases.
core:archiveto specify which plugins we should restrict archiving for.
It isn't that important. It is a "good to have" feature but not a "must have".