Attribute Mapping fails on 2D Drawing Template

We have mapped attributes from the Teamcenter revision with the NX UGPART dataset. But When we create a drawing in integrated NX the two attributes(editable in cad) become non-editable. The same attributes are editable on the 3D part. The following image shows the mapping for UGPART and the highlighted attribute are the concerned attributes:

Mapping a single TC property to both the UGMASTER and UGPART datasets will only allow one of the NX dataset types to be the master.  

Setting the ‘master=’ value to 'cad' or 'both' for both dataset types will conflict as only one of these values can be the master.  When the UGMASTER dataset is ‘master’, the UGPART will read the value by traversing through the parent Revision business objects properties.

In other words, it is not allowed for both the UGMASTER and UGPART to map to the same TC property with master=cad (or both) for both types.   One of the dataset types will need to be set with /master=iman

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