Use this required field to specify those variables containing the probabilities for the three genotypes. If the three columns of probabilities always sum to one (1), then you can specify just two variables.All of the variables in the specified data set are displayed in the Available Variables field.
Highlight the variable(s) listing the probabilities for the genotype at each SNP. To select multiple variables at once, hold down while left-clicking variables.
Click to add the highlighted variable(s) to the Genotype Probability Variables field, as shown below: