Example with mandatory variables not filled in

---
rougail:
  val1:
    val1:
      var: example
    val2:
      var: example
  val2:
    val1:
      var: example
    val2:
      var: example

Example with all variables modifiable

---
rougail:
  var:
    - val1
    - val2
  val1:
    val1:
      var: example
    val2:
      var: example
  val2:
    val1:
      var: example
    val2:
      var: example