• Custom Post Type Documents: Switch to Off to disable the Documents custom post type altogether and remove it from the main menu.
• URL Rewrite: The text displayed in the URL when you view a single document page. For example, set this to document for your URLs to look like site.com/document/document-name.
  

After changing this field go to Settings → Permalinks → Save Changes.

• URL Rewrite name: The name displayed in the breadcrumbs when you view the single document page.

Category URL Rewrite: The name displayed in the URL when you access the documents archive, such as a documents category. For example, set this to documents-category for your URLs to look like site.com/documents-category/category-name.

After changing this field go to Settings → Permalinks → Save Changes.

Category URL Rewrite and URL Rewrite can’t share the same name.

• Excerpt limit for list template: Set the length of the excerpt displayed for every document on the Documents List page template.

• Excerpt limit for grid template: Set the length of the excerpt displayed for every document on the Documents Grid page template.

• Number of documents per page: Set how many documents per page you want to display on the Documents List and Documents Grid page templates.