Folder for Pages in WordPress Dashboard.

Hi,
I was using wordpress for blogging. Even though I manage some pages in my site https://www.eduprofessor.com . Here in each page, it will link to some more pages. Now there is no any problem with the website. I like to manage all this pages. Will update all the pages frequently and also adding more pages. But while editing the pages, I Cant able to manage which page was linked to which one. So is it possible to create any folder for pages in wordpress? Like folders and sub folders in computer. Instead of showing all the page in single list under Pages, I like to split them as folder based on contents. Can anyone help me? Any plugin or any other idea?