A couple of quick thoughts based on the Polymorph/TT image: (1) Halt-once looks like it is built into the image as a mode. It is a VERY useful concept, but Dolphin has long had a goodie that provides the feature as a class, used something along the lines of the following: abandonHopeAllYeWhoRaiseEndlessWalkbacksHere self someUnfortunateConditionDetected ifTrue:[ Once do:[ self halt. ]. " Once reset. " ]. Any takers? I did not write it, but I think we will find it licensed in a friendly way, or it could be easily reconstructed, if not improved by having registered instances, allowing independent conditional breakpoints, and all in code, or as I like to say "done in the language, not TO the language." (2) The extended search sub-menu. At the really picky level (ignore if there is ANY problem with this), it might be nicer to pop out a submenu vs. jumping to another menu. Bill Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bschwab@anest.ufl.edu Tel: (352) 273-6785 FAX: (352) 392-7029