Emmet How To Wrap Usig Multiple Tags

Another alternative is to use regular snippets. This is for vscode:

"link snippet": {
  "prefix": "link",
  "body": [
    "<url>"
    "<loc>$TM_SELECTED_TEXT</loc>",

    "<lastmod>2020-01-16T22:59:45+00:00</lastmod>",  // if date is fixed ahead of time

       // use below if date is dynamic at creation time
     "<lastmod>${CURRENT_YEAR}-${CURRENT_MONTH}-${CURRENT_DATE}T${CURRENT_HOUR}:${CURRENT_MINUTE}:${CURRENT_SECOND}+00:00</lastmod>"

    "<priority>0.80</priority>",
    "</url>",
    ""
  ],
  "description": "Wrap link with url, etc."
},

Then, because you will need to chain 3 commands together to make this easy, use a macro extension like multi-command. Pu this into your settings.json:

  "multiCommand.commands": [

    {
      "command": "multiCommand.expandLink",
      "sequence": [
        "editor.action.insertCursorAtEndOfEachLineSelected",
        "cursorHomeSelect",
        {
          "command": "editor.action.insertSnippet",
          "args": {
            "name": "link snippet",
          }
        },
      ]
    }
  ]

That will trigger the snippet after it selects each of your lines separately. To trigger the macro itself you need a keybinding (in keybindings.json):

{ 
  "key": "shift+alt+l",
  "command": "extension.multiCommand.execute",
  "args": { "command": "multiCommand.expandLink" },
},

A fair amount of setup, but then it is just the one keybinding to trigger it all. Demo: