MT4 indicator to add a small line needed

I would like an Indicator that puts a small line (like half an inch or something) in the most recently closed candle.

The formula is

If close is higher than 3 previous closes, then:
Close -(High-Low)*.382

If close is lower than 3 previous closes, then:
((High-Low)x.382)+Close

Is this possible and what would I put as the code?

I thank you ahead of time for your advice and help!

-Stearno

Easily possible; will look tomorrow if nobody answers before then (too tired now)

try this.

Thank you. I look forward to trying it out and will let you know.

-Stearno

Np.
Modded so that you do not need to refresh the time (forgot about that).

It seems to work. I saw a white line on one chart, but the conditions have not appeared so I see it again. Thank you very much for your help!

-Stearno

Im also looking for an indicator which I think would be very easy to code.
Im simply looking to distinguish the london open and the new york open bar or candle. put a dot above them or make a different color or w/e. If anyone could help that would be great! thanks