How to use gann angles in autmated day trading

If you are checking Gann  in Zerodha Pi,  it is available under Chart tools, check the below screenshot

Gann Fan in this software is not accurate… Scale is issue…As Per pure sir W.d.Gann words one price unit equal to 1 time unit… which not visible in this tool

Check below article to understand the usage of Gann angles in Day trading: