In reply to Chris Hemedinger.

... if you are still taking suggestions, it would be great if I could edit my DATA step inside the debugger window, to make fixes, so I can rapidly retest, without having to end "Debug" mode, make changes, and then start "Debug" again. This would also alleviate the need to "Evaluate" expressions on the command line. This debugger tool is powerful. I am just starting to fully utilize it.