About Trend Channels or Horizontal Lines or Trend Lines, How do we delete the previously made trend line?

[len 1]

Or if we have 10 (1 Being the most recent, 10 the oldest), how do we delete accordingly so that our EA is not filled with
multiple lines during backtesting????

Thanks

Len

[l'andorrà]

@len-1 You can use any of these blocks when appropriate: