Click View > check the box for Project Tree.
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The Project Tree is located on the left side of the screen by default.
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Delete Page
Right-click on the page you wish to delete, then click Delete Page > Ok.
Copy/Paste a Page
Right-click on the page you wish to copy, then click Copy Page. The copied page can be cloned by right-clicking on an empty space, then click Paste. Copy/paste a page can be done between projects as well.
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