How to: Limit ZigZag Bars

[M_j]

hi,

I have just a small question in case anyone knows.

I would like to add to the attached ZigZagWithValue.mq4 indicator an option to only calculate/display a limited number of past ZigZag points.

e.g from Current price 10 or 23 or xx... ZigZag points back.

Any idea how to go about it.

Thanks so much.

MJ