It's looking up! Thanks for quick and helpful reply Cory.
Perhaps, as long as macro does not drink up all memory by mkt close, I'll have my solution, even if it needs to be the only macro running -- I'd sacrifice this laptop to the job, and play on other toys.
Clipboard does appear to report new arrivals to ME, so wrapping it in the FAQ constant looper was all that was needed for it to keep testing for newly arriving clip words...
Great news, since charting package did not report much to control grabber, not distinguishing its message control popups from chart itself.
I may yet need to incorporate your activate-a-custom-window suggestion somehow, where the window title itself could be SELL.
But so far, ME needs know nothing of the charting package -- linking only clipboard to 3 buttons in 3rd party order processor -- what a simple surprize!
I'll give this macro a simulator trial run on Monday... I may have lucked out with this fine ME program. Since the programmers have already done the heavy lifting, robot's parts flew together in hours.