Your code also seems to work for me. Maybe you are looking for a way to have rows or columns of scrolled widgets? In that case you need to put frames into the Scrolled Pane, then fill the frames with Scrolled widgets. Here is an example with the Scrolled Canvas

#!/usr/bin/perl
use strict;
use Tk;
use Tk::Pane;

my $mw = MainWindow->new;

$mw->geometry('400x250');

my $mwf = $mw->Scrolled('Pane', 
               -scrollbars=>'osoe', 
           -sticky=>'nwse',
           )->pack(-expand=>1, -fill=>'both');

my $f1 = $mwf->Frame()->pack();
my $f2 = $mwf->Frame()->pack();

my %canv;

for (0..4){
  $canv{$_}{'obj'} = $f1->Scrolled('Canvas',
            -height => 100,
            -width => 100,
            -bg =>'white',
        -scrollbars => 'osoe',
        -scrollregion => [ 0, 0, 500, 500 ], 
   )->pack(-side =>'left' ,-padx=>10,-pady=>10);

  $canv{$_}{'obj'}->createText(50,50,
    -text   => $_,
    -anchor => 'center',
    );
}

for (5..9){
  $canv{$_}{'obj'} = $f2->Scrolled('Canvas',
            -height => 100,
            -width => 100,
        -bg =>'white',
            -scrollbars => 'osoe',
        -scrollregion => [ 0, 0, 500, 500 ], 
   )->pack(-side =>'left', -padx=>10,-pady=>10 );

  $canv{$_}{'obj'}->createText(50,50,
    -text   => $_,
    -anchor => 'center',
    );
}
MainLoop();
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