Easily identify current price relative position to these key prices.
I use it as a kind of and help me with trend following entries: longs if up from last close, shorts if down from last close.
Monthly: red line (MMMMM)
Weekly: orange line (WWWWW)
Daily: yellow line (DDDDD)
Hourly: white line (HHHHH)
//Original idea from "Key Levels
Adjusted colors and character for visibility