KeepRemoveFlag/chance

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