I think that NSided and Rebuild have factories, that the API does not document.
Orient, and OrientLineToLine, and ArrayGem, all have factories that are not documented by the API.
Also ExplodeMove, BoundingBox, BoundingBoxCenter, Make2D, and RemoveDuplicates, all have factories that are not documented by the API.

The Inset factory seems to be missing from the API.

I made a printout of MoI Command Reference, and the API factories, and started checking off the ones which seem to have the same factories in common.
But a Command is not a factory, but (often?) uses a factory in its .js code.
I started to get slightly confused. The API does not cross reference factories with commands.
Some Commands have a few types. The API does not show any grouping of related types...
For example, the Offset command includes curve offset, shell, and inset.

- Brian