Ouch. Repeated code is usually a sign that you need abstraction or a loop, or a better datastructure. Does this (untested) code replace the first half? 

my @t = (
    11111,
    $datapoint[$kk][1],
    $datapoint[$kk][2],
    0,
    0,
    99999,
    1111,
);

my $point3 = $blocks[ $datapoint[ $kk ][ 3 ] ];

for my $rr ( ($jj + 1) .. $#$point3 )
{
    (@t, @{ $point3 }[ 0 .. 6 ]) = (@{ $point3 }[ 0 .. 6 ], @t);   
}

push @$point3, \@t;

[download]

Update: demerphq caught a missing square bracket

In reply to Re: Hash or not? by chromatic
in thread Hash or not? by stu96art

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