Libra 2 Landscape except on cover page

[Hortensia]

Hello,

I have a Kobo Libra 2 and I set the reading format to landscape. This is great for reading, less so to look at the book cover.

Is there an option, either:

• on the Libra 2 to keeping the cover page in portrait format, or
• on Calibre to rotate the cover page automatically before sideloading the ebbok to the Libra 2?

Thank you!