Good morning, dear Mr. Tools. ,
Can help me.
Added 4 functions to BB flat sw (alert)

(mtf + alerts + arrows + btn)
arrows ：
Arrow I need MA of BB flat sw to send arrow through Bollinger Bands
same as !! dpo-bb


Alert can be divided into 2 parts,
1. The expansion and contraction of the Bollinger Bands
2. The MA crosses the Bollinger Bands

Please keep the first alarm and add the second alarm

Infinite merit