How to label specific date (event) or create vertical line with text?

Hi, I created a test calculation in PI Vision: 

IF (year('*')>=2024 and month('*')>=2 and day('*')>=11) THEN 'PI_Tag' *0 ELSE 1

1) any way to label the date 2/11/2024, maybe vertical line or text so it will show on the time series plots

2) improve the logic expression so i don't have to breakdown the year, month, and day and can just do 2/11/2024.

Thanks,