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