>That's why I create a function that conditionally runs the SET STEP ON based on a environment variable. No variable, no SET STEP ON.

That's a good idea, and I have done that in the past - but sometimes you're in a rush with a new bug found, you just stick one in quickly :) But I now prefer to use breakpoints -- as I studied the various debug window "opening-resizing" scenarios in 6, there is virtually no advantage to STEP over breakpoints, and with breakpoints you have a better "management" system in the breakpoints window...