History" is a feature to many operations. What you describe is the history mechanism.

To do what you want, you want to jump through one extra step at the beginning and "disable history"

Select item and click on history-disable update

Michael could answer one question for me i always avoided answering with trial and error.... "WHICH" of the items follow the history. So in the situation described here, disable history on the "Curve" works? Or disable history on the "Extrusion" works?

I always selected ALL objects involved in the originating operation and disable history update on all of them and moved on.

Knowing the hierarchy would be helpful for future.

[EDIT] I just read the help reference which tells me the disable operates on the "Resulting surface or solid"? So not the originating curve?

Hi Burr, yep turn history updates off on the extruded solid, not original curve.

I'll see about putting in a way to turn history off by default.

- Michael

Sorry I'm being stupid, where is the option to turn history on and off? After selecting the solid where do I turn the history on or off?

OK thanks -- found it. never explored that corner of MOI before.