Right-clicking on a File Browser item shows a context menu that (usually) includes a submenu "External". The items on that work correctly when selected from the menu, but will not work correctly if you create a keyboard shortcut directly to the item. This PR removes the use of a filepath property on these, instead having each operate on the currently-selected File Browser item. Pull Request: https://projects.blender.org/blender/blender/pulls/134819