The "Add New" button on the "Edit XXX" links to an "Add New Page"

Then do yourself a favor and either use the new magic fields version 2 as up ’til today there hasn’t been any forthcoming concerning a script to migrate v1 data to v2.

Or choose an alternative that is supported at the time of writing: Meta Box.

Or if you’re familiar with PHP, go and create your own, like in this tutorial.

Thanks for the advice. I have switched to version 2 but recently learned that the developer of Magic Fields has announced that he will stop supporting it. I am now trying “Advanced Custom Fields” but for what I want to do it isn’t as good as Magic Fields. I hope someone new takes over Magic Fields. May try “Meta Box” later.