If you're going to use tie, you might as well make the following work

my @a = qw( a b c d e );
make_view( \my @v, \@a, 2, 2 );  # @v -> splice( @a, 2, 2 );
@v = qw( x y z );
print( "@a\n" );  # a b x y z e
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similar to

my $a = 'abcde';
substr( $a, 2, 2 ) = 'xyz';
print( "$a\n" );  # abxyze
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By the way, tie $view[$idx2], ... should be tie $view->[$idx2], ... in your code.