All @RISK distributions support an addition parameter called a shift factor. A shift factor does exactly what it sounds like: it shifts the location of the distribution away from what it normally would be. A positive shift factor shifts the distribution to the right. While @RISK and the RDK support shift factors for all distribution types, we don't recommend using them in distributions that have a built in location parameters. For example, the first "standard" argument of the Normal distribution is the mean, which is clearly a location parameter. Using an additional shift factor would be confusing, since the real mean of the distribution would be shifted from this value.
If you are using RISK functions to sample a distribution, the shift factor is an additional optional argument to the function. If you are sampling from an RDKDistribution object, there is a ShiftFactor property, which you can set.