Is it possible to rotate column headers in (sub)form?

Good morning

My name is Wim and this is my first post after registering two years ago. I’m not a very active office user so it took some time for the first post. Now working on my first LibreOffice database.

I have a (data entry) form with a subform as shown below

I would like to rotate the column headers in the subform. Is it possible and if yes, where do I study it. If it’s not possible, is there an alternative layout approach?
The number of rows in the subform is currently 3 max.

LibreOffice 25.2.2.2 (and in case relevant: Windows 11).

Thanks in advance.