title: how to move a block or column of text
body: <p>I have the following text as a simple case:</p>
  
  <pre><code>...
  abc xxx 123 456
  wer xxx 345 678676
  ...
  </code></pre>
  
  <p>what I need to move a block of text xxx to another location:</p>
  
  <pre><code>...
  abc 123 xxx 456
  wer 345 xxx 678676
  ...
  </code></pre>
  
  <p>I think I use visual mode to block a column of text, what are the other commands to move the block to another location?</p>