I want to perform a Monte Carlo simulation in Crystal Ball application, by running the inputs in a matlab script and getting outputs from it to be pasted in forecast analysis cells in crystal ball.
There are several computer codes* named "Crystal Ball'. In lack of its exact identification, it isn't possible to answer the question. -- Example: many years ago I was a member of an international working group, which analyzed world-wide used neutron spectrum unfolding codes. The Crystal Ball of that group doesn't perform M-C calculations.