hole pattern datum

PC-Demon 2013 MR1 SP2
I got this part...
Datum A is a straight forward plane. Datum B is a 4 hole pattern on Datum A. First time I've run into this and had to look it up in the standard (4.12.3 ASME Y14.5 2009).
In the demon how do you assign the 4 holes to be Datum B for ExactMeasure dimensioning? The demon would not let me select multiple holes when assigning a datum.

thanks
eric

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apgar over 9 years ago

The 'Similar Threads' feature actually had some useful info. I was able to create a feature set of the four holes and assign a datum to the feature set. PC-DMIS does not let me turn on MMB on this "feature set" datum, but it's a start.
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apgar over 9 years ago

The 'Similar Threads' feature actually had some useful info. I was able to create a feature set of the four holes and assign a datum to the feature set. PC-DMIS does not let me turn on MMB on this "feature set" datum, but it's a start.
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