[Calc] Insert current year into header?

https://i.imgur.com/kb7Fq6a.png

I’m able to select sheet title, and date, but the date is day/month/year. I only want the current year.

Unable to edit that text, since it just erases the entire date.

How can I do this?

It’s not possible. There’s an RFE for this tdf#89187.

Maybe with Menu/Format/Print Ranges/Edit/Rows to repeat and prepare what in cells, if it is not used already.