When you have a page in front of you, there are a bunch of things you can do with it.
Open the More menu.
Choose Copy Page.
<aside> 💡 You can then paste from the Add Page menu. See Add one or more pages.
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<aside> 💡 You can also tap the Eraser Tool twice and choose Clear Page.
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<aside> 💡 To recover deleted items, see Recover one or more trash items.
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