I am actually using the trading view library (not the free version or lightweight) and I am looking to be able to put a line between the close of the market on a day and the open of the market the day after. Something like this:

I have been searching for days now and I only can find pinescript solutions, but none of the tell you how to, either, add pinescript in your javascript code or transform it to js in order to use it on the website.

Thanks in advance