Example with all variables modifiable

```yaml --- rougail: # Rougail var: # A suffix variable - val1 - val2 val1_dyn: # A dynamic family var1: val1 # Value is suffix var2: val1 # Value is first variable var3: val1 # Value is relative first variable var4: val1 # Value is first variable of val1 val2_dyn: # A dynamic family var1: val2 # Value is suffix var2: val2 # Value is first variable var3: val2 # Value is relative first variable var4: val1 # Value is first variable of val1 ```