title: How to rename multiple files in Google Drive at once using a syntax?
body: <p>Does there exist a Google Apps Script that lets the user rename multiple files at once using a specific syntax?
  Like "delete part X from the filename Y of all files in folder Z" or "change strings like "one", "two", "three", ... to numbers like "1", "2", "3", ...". </p>
  
  <p>For example, in the folder "Stories", all filenames may be be like "Book 1 Chapter 1 The Beginning", "Book 1 Chapter 2 A New Chapter", and I could want to remove the string "Book 1 ", so that all filenames will look like: "Chapter 1 The Beginning", "Chapter 2 A New Chapter". </p>
  
  <p>I'd like the Script to have a Graphical User Interface with input fields, buttons, lists, etcetera so that I can manage all [the names of] my files using just one Script. </p>