> It seems that this could be handled fairly straight-forwardly by subclassing either Listbox or Frame to implement your own, custom widget.
I will freely admit that I am far from facile with Tk widgets. I've been using GTK for most GUI apps for a long while (when I need to write such things), but simple lists are such a PITA with GTK that I ran screaming to Tkinter. If this small application gets much more complex, I will take a look at subclassing Listbox. Skip
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