[Script] Masters - Peter - Find the first names and usernames of Instagram users

Here's the Master Script.

Code:

// ==UserScript==
// @name         @Mshared - Peter - Find the first names and usernames of Instagram users
// @namespace    https://greasyfork.org/en/users/13132-rosesword975
// @version      1
// @author       rosesword975
// @description  Hides Instructions; copies username from link to correct box ; and puts "n/a" into the first name box and focuses on the first name box.
// @grant        GM_log
// @include      https://s3.amazonaws.com/mturk_bulk/hits/*
// @require      https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js
// @require      http://code.jquery.com/jquery-2.1.4.min.js
// ==/UserScript==

$(document).ready(function(){
  if ($('body:contains(Capitalize the first letter of their first name)').length){
   
    // Creates button and hides instructions.
    $(".panel.panel-primary").before('<button id="toggle" type="button"><span>Show Instructions</span></button>');
    $(".panel.panel-primary").after('<br></br>');
    $(".panel.panel-primary").hide();

    // Toggles instructions and changes toggle text.
    $('#toggle').click(function() {
    $(".panel.panel-primary").toggle();
    $('#toggle').text() == 'Show Instructions' ? str = 'Hide Instructions' : str = 'Show Instructions';
    $('#toggle span').html(str);
    });
   
    var link = $('a').eq(0).text();
    var split = link.split("/");      
   
      //window.open(link, 'pete and repeat');
      $('input[name="UserName"]').val(split[3]);
      $('input[name=FirstName]').focus().val("n/a");
  }
});