There are two versions of the Reliability (RL) Module: Reliability Professional and Reliability Learning Edition. Your copy of GoldSim will have one or the other (but not both), depending on your license. Reliability Learning Edition is included automatically with GoldSim Pro. Reliability Professional must be purchased separately.
Reliability Learning Edition provides all of the features and capabilities of Reliability Professional. The only difference between the two versions is that Reliability Learning Edition limits you to adding no more than ten reliability elements. Reliability Professional imposes no limits on the number of reliability elements that can be added.