CamTD: If it's for drilled holes, try this....
Hole Cycle - Filtering Tab - You can tell it to match the size of the drill or you can set a range. This is in 10.5 but 10.0 should be the same. I dont know about earlier versions.
I've not had much luck with Groups either. It does seem that making a group removes all access to the original geometry. Made a group out of circles and later tried to put points at the center of the circles. Cant do it without deleting the group.
I would think that making a Group "tags" the geometry and does not change it properties. I would also like to see Groups picked from a list. It seems difficult to "grab" a Group and using a Window selects other items you may not want.
Selection methods for 2D geometry could stand to be improved.
Mike Mattera
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