MS Word - Insert landscape page (page break not working)

Hi everyone!

I'm trying to insert a landscape page into a primarily portrait document. I've read on the forums that you should insert a page break to do so as the 'orientation' button affects the entire document.

Unfortunately, page break is greyed out. I've tried highlighting text, highlighting the page in the document map pane etc. but it still stays greyed out.

Can anyone help?

Thanks!

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