That means you cannot use the plugin to show all pages/entries on one admin-page if I understand right?You can only set the number of items or posts that are shown on the home or blog page.
My main purpose is not (only) to edit pages but to get an overview about the pages, arrange them etc. Imagine you create a page and forget to set the parent. The page is in a different location you expect it, the quickest way to find it would be to have a list of all pages in the backend.
I tried adminbar, but this doesn't seem to work correctly. When I click "edit post" on the admin-bar in the frontend the link that's opened is something like xyz.com/admin/edit-content/url-name - this redirects to the admin-homepage xyz.com/admin/content