Add an indicator to strategy in pinescript

i need an indicator added to a strategy :-)

this is the strategy
https://www.tradingview.com/script/Cd5vj6Wp-BEST-Strategy-Template-w-Custom-SL-TP-Size-Educational/

this is the indicator
https://www.tradingview.com/script/323wh4j1-MACD-EMA-SMA-Linear-Regression-Supertrend-VWAP-Threefold-Ghost/