Click Add file or Add folder to select HTML files or folders with HTML files for insertion of meta tags. To remove a file from the list, right-click the desired entry and select Delete.
Now you may choose between three options of the Insert button:
Insert: Adds the generated meta tags to the selected HTML files.
Insert From File: Adds meta tags of an existing local HTML file to the selected HTML files.
Insert From Project: Adds meta tags from project related meta tags to the selected HTML files.