title: Google Script App to Toggle between showing and hiding COLUMNS
body: <p>Help!</p>
  <p>I am trying to write a script for a toggle button that will show (and then hide again) hidden cells in Google Sheets, and I am having trouble. Can anyone please help me?</p>
  <p>I want to place a button (already made) in the sheet (already inserted) and assign a script (I can get to this point) that will toggle between hiding/showing columns B to F.</p>
  <p>Please help. I am lost!</p>