Calendar Cleanup – undocumented LS functions

I am researching the Calendar Cleanup action in the Lotus Notes Calendar view.
The action executes a LotusScript agent that has two undocumented db calls CreateArchiveSettings and ArchiveNowByPolicy. The functions are used since the feature was introduced in Notes 7.

Obviously nobody ever looked into the code as there are no Google search results except this post on LDD that is still unanswered.