title: Charles map local to HTTP query parameters instead of paths
body: <p>Does anyone know if it's possible to use separate map locals to query parameters of the same host and path.</p>
  
  <p>E.g. I have the following paths:</p>
  
  <p><code>http://host/list/21?page_size=24</code></p>
  
  <p><code>http://host/list/21?page=2?page_size=24</code></p>
  
  <p><code>http://host/list/21?page=3?page_size=24</code></p>
  
  <p>Is it possible with Charles to map 3 map locals to those query parameters even though the paths are identical? At the moment, they just merge into one map local instead of 3 independent map locals.</p>