Add options to construct Datum features in such a way that they reflect the standard.
Example - Datum A is a Plane, and Datum B is a cylinder bore nominally perpendicular to the plane.
As per both ISO and ASME standards, Datum B would be a Max Insc Cylinder Perpendicular to Dat A.
It's easy enough to construct a Max Insc cylinder, but this wouldn't be forced perpendicular to the plane, currently you'd have to measure it as a series of circles, then construct a Max Insc Circle in the correct workplane after levelling to Dat A.
See bottom image for example (image shows shaft not bore but principle is the same).
Like wise construct a datum plane from a measured plane relative to another feature (Top image)
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