Hi.
Please understand my poor English
I have a question about the Tooltip option in Chart.
Exactly the question about the header of the Tooltip.
The value of the x-axis is shown together in the header.
<====== Original
I want the line break of the x-axis value.
So, i changed x-axis value.
- Old = yyyy-MM-dd HH:mm:ss
- New = [yyyy-MM-dd]<br>HH:mm:ss
However, the line break applies equally to the tooltip header. This is very ugly.

Next, I tried to control the header value by creating a custom function, but failed.
Can you give me a good solution?
Also, I don't want the line break to be applied to the text of the crossshare.
Thank you