dear forex station coder, can u plzz add arrow ,alert and update price option on this indi

also i have question,
why this indi does not work when i`m using it on D1 time frame,
setting that i use, time frame use weekly, price average median body (open+close)/2
but when i change to lower tf it`s work fine, do you have solution for this because i usualy work on D1 tf