Help! Can someone help me with adding Alert to that Indicator?

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Help! Can someone help me with adding Alert to that Indicator? I need an alert each time when parabolic switches from top to bottom / bottom to top.
Thanks in advance!

[William Roeder]

You have only two choices: learn to code it, or pay someone. We're not going to code it FOR you. We are willing to HELP you when you post your attempt (using SRC) and the nature of your problem.