When setting a datum plane to be a geometric target the plane is always shown in the model regardless of layer or feature settings.
This is new functionality per CS59979 "https://www.ptc.com/appserver/cs/view/solution.jsp?n=CS59979&posno=1&q=59979&nav="https://www.ptc.com/appserver/cs/view/solution.jsp?n=CS59979&posno=1&q=59979&nav=
This functionality is undesirable in many circumstances.
Can we have a config.pro setting to toggle this?