To view or change your settings, go to Mendeley Desktop > Preferences > File Organizer . The Default location is in your Documents folder, but you can change this by using the ' Browse.' option under Organize my files. Anything you import into your Mendeley Library will be duplicated and saved. Mendeley will create a back up folder for your files in your hard drive. Tip: When adding new documents, you should always make sure the Type selected matches the type of document you have added, e.g.: a journal article, a book chapter, web page, or thesis, etc. Select the Document type from the dropdown menu, and then check the box next to the name of the field you want displayed (see screenshot below). add a Date Accessed field to by going to Mendeley Desktop > Preferences > Document Details . If you would like a new field to show up for a specific type of document, you can customize the fields. Both will have Title and Author fields, but the other fields displayed will depend on the document type, and required details for citing this document type. For example, a book will have a field for an ISBN but a journal will not (Instead, it will have an ISSN).
Each type has a different set of fields that it displays in the panel. In the Details Panel for each file in your Mendeley Library, you will see a document "Type" menu at the top (see the top right of the screenshot below).