title: How can I get the current width of a specific amount of columns
body: <p>What I want to achieve is getting the width value (in percentage) of a specific amount of columns (based on the current context).</p>
  
  <p>Is there a <em>grid helper</em> to do this (maybe <code>find-grid</code> function)? Could you provide an example on how to use it?</p>