Example with all variables modifiable

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