Change paper size to 6" x 9"

I’m submitting a manuscript to Kindle Direct Publishing Paperback. I need to select a 6" x 9" paper size. It’s easy to do in Word. I tried pasting my ODT document into Word and lost ALL my formatting and pagination.

EDIT: LeroyG. Thank you for your suggestion. I did find the Format>page>page and was able to select 6" x 9" I pasted in my document. Now I have to fight with the margins. I tried a dozen times to change the tag to writer but it would not change. I clicked on “retag” and replaced common with writer but when I hit enter it went right back to common.

To change paper size, choose menu Format - Page… - Page tab; in the same tab you can change margins.

To retag, delete common, type writer and press Enter twice.

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