{
   common: {        
          setting1: Value 1        
        + setting2: 200        
          setting3: 1        
        - setting4: blah blah        
        - setting5: {
              key5:value5
          }        
        + setting6: {
              key:value
          }
    }
    group1: {        
        - baz: bas
        + baz: bars        
          foo: bar
    }
  
  + group2: {
        abc:12345
    }  
  - group3: {
        fee:100500
    }
}
