title: Removing only blank cells (not rows) in Google Sheets
body: <p>Could you please assist in a simple Google Sheets script to allow me to take a sheet that looks like this:</p>
  
  <p><img src="https://i.stack.imgur.com/ZEQGe.png" alt="Before picture"></p>
  
  <p>to automatically convert it with 1 click to this (ie - not to delete ROWS, but to delete and move up on empty cells only):</p>
  
  <p><img src="https://i.stack.imgur.com/EGBfR.png" alt="After Picture"></p>