gistfile1.js

commands.addUserCommand(['matrixcode'], '',
  function(args) {
    var $LX = plugins.libly.$U.getFirstNodeFromXPath;
    var $LXs = plugins.libly.$U.getNodesFromXPath;
    $LXs('//th[@align="left"]').slice(2).forEach(function(t) {
      var x = t.innerHTML;
      $LX('../td/input', t).value = liberator.globalVariables.matrix_code[x[1]][x[3]-1];
    });
    $LX('//input[@type="submit"]').click();
  }, null, true);