title: How to remove text from all lines between two columns?
body: <p>I would like to remove the content for all lines between two columns. How do I do this?</p>
  
  <p>For example, I want this:</p>
  
  <pre><code>abcdefg
  hijklmn
  opqrstu
  </code></pre>
  
  <p>To become this if I remove text between columns 3 through 5:</p>
  
  <pre><code>abfg
  himn
  optu
  </code></pre>