Example with mandatory variables not filled in


---                                                                             
variable: example             # A variable                                      
family:                       # A family                                        
  variable1: example          # A first variable                                
  subfamily:                  # A sub family                                    
    variable: example         # A variable                                      
  variable2: example          # A second variable                               



Example with all variables modifiable


---                                                                             
variable: example             # A variable                                      
family:                       # A family                                        
  variable1: example          # A first variable                                
  subfamily:                  # A sub family                                    
    variable: example         # A variable                                      
  variable2: example          # A second variable