title: How to change datastore options in Google App Engine?
body: <p>I created my application using "High Replication" option. Now I want to switch to "Master/Slave" option because I'm hitting my daily CPU quota. </p>
  
  <p>It turns out High Replication uses "approximately three times the storage and CPU cost of Master/Slave" </p>
  
  <p>Is there anyway I can do this without recreating my app? It's not in the Application Settings page.</p>