Dual dimension does not work in sketch ?

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Create Dual Dimensions in a Sketch in NX12.

1. 'Curve -> Sketch in Task Enviroment -> (select existing closed) sketch -> (press) mouse button three -> Settings -> (Sketch Settings Dialog) change to Dimension Label: Value (default is Expression)'. 

2. 'Home -> Sketch -> (select existing closed) sketch -> (press) mouse button three -> Settings -> (Sketch Settings Dialog) change to Dimension Label:Value (default is Expression)'.

3. In both of the different Sketchs on how to make dual dimensions in NX12:'(Highlight) sketch -> (press) mouse button three -> Edit -> highlight

Dual Dimension -> Close' which immediately displays dual dimension.