Hi Marc, we just published a short article describing how to make edits to a yahrzeit calendar

https://www.hebcal.com/home/632/how-to-make-changes-to-a-yahrzeit-anniversary-calendar

I hope this helps! Our mission at Hebcal.com is to increase awareness of Jewish holidays and to help Jews to be observant of the mitzvot.

If you'd like to send a donation, here are more details.

https://www.hebcal.com/home/about/donate

Hi Pedro, checking in again - any chance you've been able to work on the Portuguese translation?

Thanks for using Hebcal and thanks for the suggestion! We have added Shabbat Mevarchim to the Shabbat API 

https://www.hebcal.com/shabbat?cfg=json&zip=90035&gy=2021&gm=8&gd=5

You'll notice an item that looks like this:

{

"title": "Shabbat Mevarchim Chodesh Elul",

"date": "2021-08-07",

"category": "mevarchim",

"hebrew": "שבת מברכים חודש אלול",

"memo": "Molad Elul: Sun, 43 minutes and 10 chalakim after 10:00"

},

Hi Bob, sorry for the delay in getting back to you. I hope you were able to figure this out?

If not, we did a bit of research and it seems most Windows 10 calendars are created via Outlook.com - so the best way to delete would be to log in at  https://outlook.live.com/calendar and remove the calendar by clicking on the three buttons and selecting Remove

This feature is now complete. You'll notice a new checkbox that shows/hides Havdalah times