Simple request of a coder

Hi there, I am trying to do something that is probably fairly simple (if you know what you are doing). I am trying to add an alert feature to an existing Mt4 indicator.

Before asking for help, I did give it a try myself LOL but didn't get close. (What do expect from a 61 year old smart ass who knows just enough to be dangerous.)

If anyone can assist, I would certainly appreciate it!

I have attached the original mql for Keltner Channels and my attempt.

I am wanting to have emails when price crosses the upper or lower band.

Thanks!

Here, you have it - with alert if current price is above band or below band.