How to code line extensions in TOS

[AssassinAR15]

Good afternoon. I have spent a great deal of time trying to figure out how to code left and right line extensions in TOS

I am using a custom script that will plot recent daily, weekly, and monthly hi/low on the same chart, but the lines do not extend all the way to the right and all the way to the left (like you can do when looking in trendline properties)

Does anyone know how to get this done?

 

[halcyonguy]

here is a study that included a formula to draw a horizontal line across the chart
https://usethinkscript.com/threads/current-price-line-indicator-for-thinkorswim.614/