Railing on stair set it to nonhosted, but keeps his form, how?


Background: for any reason a hosted railing get classifed(.ifc) as a stair even when it got overwritten with IfcExportAs.
When i dehost my railing the problem is solved, BUT i have to set my railing manualy, that it apears “hosted”. So can convert a hosted railing in a nonhosted one, by keeping its form?

are any valus to the path exposed like, “is slanted”, “offset to Level”,… a.s.o. to a hosted railing.
Or the values apear just when it is unhosted.

or is there a trick in the ifc export, to divide these classes?