Example with all variables modifiable ---  rougail: # Rougail   var1: # The first variable   - 0.0   var2: # The second variable   - 0.0   var3: # The third variable   - 0.0   var4: # The forth variable   - 10.1   var5: # The fifth variable   - 10.1   var6: # The sixth variable   - 10.1   var7: # The seventh variable   - 0.0   var8: # The eighth variable   - 0.0