Thank you.
I didn't think it was so complicated.
My thought was:

Draw rectangle with variables

First variable --> 22:30 closing price candle from the day before
Second variable --> 14:30 opening price current candle

now the dynamic adjustment

Replace second variable with value (second variable =<current price)

Delete rectangle --> first variable =>second variable

hi,
yes, the visual gap and that is supposed to decrease dynamically when the price goes there. So you can always see how far the gap is still open. When it is closed, you see nothing more.

Hello,
I am unfortunately very inexperienced in programming EAs. Maybe someone can help me.

I want to display a GAP in the chart dynamically. So the closing price of the previous day with the first price in the morning.
DAX 17:30 -->9:00
Dow 22:00 -->14:30
As a data source an official site that provides this data.

Ideas or does something like this already exist?

Thanks and best regards