You can keep as many elements in an array as you have memory for storage. So just add one every time the user presses the button. (And maybe remove one if the user presses a different button).
Perl 6 - second systems done right

In reply to Re^3: Perl Tk - Add text box on each button event by moritz
in thread Perl Tk - Add text box on each button event by priyaviswam

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