HTML RESULT 
{sequence 25, push='mySequence'}
{pull mySequence, make,   add=4} {$sequence} {/pull}
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
{pull mySequence, keep,   add=4} {$sequence} {/pull}
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
{pull mySequence, remove, add=4} {$sequence} {/pull}
1 2 3 4
{pull mySequence, flag,   add=4} {$sequence} {/pull}
0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1