Example with mandatory variables not filled in

---                                                                             
rougail:                                                                        
  family1:                                                                      
    var: example                                                                
  family2:                                                                      
    var: example                                                                

Example with all variables modifiable

---                                                                             
rougail:                                                                        
  family1:                                                                      
    var: example                                                                
  family2:                                                                      
    var: example