Although you will find it a useful tool for higher time frames as well.
The Alerts are generated when the fast EMA cross over/under other slower EMAs, you then have the chance to wait for the pullback during the new trend then enter for trend momentum (follow the trend).
Beware when the trend is close to EMA200.
You must draw your SRT (Support-Resistance-Trendline) before looking for setups.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.