Any answers to second question?

Yes, figure it out :)Tk::WidgetDump can help you get more diagnotical with most widgets

I'm a entry level learner...Why is this so?

:) Second verse same as the fist :) you're going to have to write a little code to figure it out, and maybe read a bit of code -- a good 15-60 minutes of work ... maybe

Oooh, another hint, the "original" tablematrix documentation might answer stuff (might not too) http://tktable.sourceforge.net/tktable/doc/tkTable.html

I'm just not in the mood for a tk info hunt ATM , sorry :)

In reply to Re^3: activate and selectionSet methods, negative columns in TableMatrix (focus) by Anonymous Monk
in thread activate and selectionSet methods, negative columns in TableMatrix by Anonymous Monk

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