Finally! For years, I wanted an easy way to press COMMAND-K to add a hyperlink in Mail.app instead of using Edit | Link | Add.
Hawk Wings has a how-to. Just follow the directions and it will work.
Thank you! I will use this every day...
The trick is to set the Mail.app keyboard shortcut through the system preferences then reference the menu item through it's title "Add...". This, amazingly, works. You can now press COMMAND-K, paste in the link and it's done.