Hi Garyo,
By looking into the screenshot, it seems that you are using the Organize Pages feature on online Document Cloud account.
In the Document Cloud, there are limited options available to organize a PDF. Please go through this help document How to Organize pages in a PDF online once to check the options available.
In order to extract or split a document, please use the organize pages feature in the Adobe Acrobat DC desktop application.
You may take help of the steps provided here How to rotate, move, delete, and renumber PDF pages in Adobe Acrobat
Hope that the information helps.
Let us know if you have any questions.
Regards,
Meenakshi