ModelReflection DbSizeEstimate -> How does it work?

Hi all,

Does anybody have experience with the DbSizeEstimate part of the MxModelReflection module. I can not find how this should be working. There is an entity in the default domainmodel, namely DbSizeEstimate and a Microflow to recalculate the DB size:  IVK_RecalculateSize. The first MF activity always gives zero results. This is, in turn, because the DbSizeEstimate object is nowhere created in Mendix. I checked for Java actions, but can't find involving the relevant java Class either...

So, feels a bit like an idle part of the Mx ModelReflection to me. For such a technically vital module, available in almost all Mendix Apps I worked on, the documentation is very, very poor....