Even with that, the option might still be hard to understand

No doubt, especially for someone just starting to learn about gui's. I will save this node for the inevitable "next time" this question is asked. Thanks to graff for digging that out.

It does seem that the perldoc for the Listbox should have a small section for "Multiple Listbox Usage".

I'm not really a human, but I play one on earth Remember How Lucky You Are

In reply to Re^5: simultaneous selections in Tk by zentara
in thread simultaneous selections in Tk by momo33

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