Example with all variables modifiable

---
rougail:                      # Rougail
  var:                        # A identifier variable
    - val1
    - val2
  dynval1:                    # A dynamic family
    var:                      # A dynamic variable
      - example
    dyn_example:              # A Second dynamic variable
      var: example            # A variable dynamic
      var_identifier: val1    # Identifier from first family
      var_identifiers: val1-example # Merge identifiers
  dynval2:                    # A dynamic family
    var:                      # A dynamic variable
      - example
    dyn_example:              # A Second dynamic variable
      var: example            # A variable dynamic
      var_identifier: val2    # Identifier from first family
      var_identifiers: val2-example # Merge identifiers