Planar Mill operation - selecting boundaries.
Boundary selection was improved at NX 11, but now it is not possible to directly select Tool Position 'ON' when selecting the boundary.
Solution
Select Tool Side = 'Right' or 'Left' and define the boundary
In the Member 'List' , multiple select all of the members. (pick 'Member1' in the list, then hold the Shift key down and pick the last Member)
Change Tool Position to 'On'
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: window
OS Version: 1064
Product: NX
Application: CAM
Version: V11.0
Function: PLANAR_MILLING
Ref: 001-9458808