in reply to Programmatically select row in Tk Tablematrix

activate only activates a single cell. Try selectionSet instead: 
$Table->selectionSet('1,1', '4,5');

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map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In Section Seekers of Perl Wisdom