Is there a double/triple low indicator out there?

[[Deleted]]

Hi.

I'm really getting up to speed with price action and identifying candle (bar) formations.
Has anyone ever composed an indicator that'll spit out an alert when a candle closes with the same low or high value as it's predecessor(s)?

Ideally, I'd like to be able to set a tolerance of up to, say, two pips difference in their low values. But otherwise, that's it. Something that throws a colored dot above the found pattern would do it.

Can't believe it's a hard thing to code, but a one-armed monkey with poor eyesight would work it out before I could...

Many thanks.