What-if on the graph is available via the Sensitivity Analysis module.
Impact analysis on a part of the graph toward a target node.
Applying evidence to one or more nodes and resamples.
Reverse Stress Testing.
Retrieve marginals and joint distributions.
Analyse distributions moments and quantiles.
 Koller D, Friedman N. Probabilistic graphical models: principles and techniques. MIT press; 2009.
 Nielsen TD, Jensen FV. Bayesian networks and decision graphs. Springer Science & Business Media; 2009 Mar 17. - 5 Analysis Tools for Bayesian Networks p167
 Darwiche A. Modeling and reasoning with Bayesian networks. Cambridge university press; 2009 Apr 6. - 16 Sensitivity Analysis p417