draw line

[alisalari58]

Hello
I want to implement the following conditions, but I can't, please guide me
If the price closes below moving 13
A horizontal line should be drawn at the closing of candle ID 1
And if the price closes below this line, open a sell position
Loss limit of the highest candle price 1
The profit limit is 100% of the loss limit
tanks

[l'andorrà]

Do you have an initial project to begin with?