Can I add a favorite by right-clicking its icon in Windows Explorer?

You can use Windows Explorer context menu (right-click menu) to add favorites of any of these three types: folders, documents and applications. In the following example, the user right-clicked the Project Calendar Excel file. The context menu Add File to Quick Access Popup menu will create a favorite for this document.

Quick Access Popup will automatically detect if the selected file is a folder, a document or an application and will create a favorite of the correct type.

Explorer context menus are also available in Total Commander or Directory Opus.

Read the page Explorer Context Menus Help.

[Wishlist] List of favorites from an external/shared settings files

From Helge:

"This wish is going into a more advanced usage direction: It would be nice to have the opportunity to reference external menu configuration files from the QAP settings files. Like this it would be possible to include e.g. a specific submenu folder / file structure which is being dynamically generated externally based e.g. on an XML file database, a database server or any other source from which an external tool would generate a configuration text file meeting the syntax of QAP menu configuration settings. By referencing a file isolated from the main QAP menu settings file there wouldn’t be the risk of conflicts with the QAP GUI settings dialog."