Each design option is equipped with a "Fast-Forward" computing feature. This allows the user to compute one parameter while varying one other in fixed increments for a specified number of iterations. The parameter to be computed is selected with the "What to Calculate" radio button. The parameter to be incremented is selected with the "fast-forward" radio button, and the "# Iterations" and "Size of Increment" are specified parameters. For example, alpha specified as ".05" with "increment size=.005" with "8 iterations" would compute the specified parameter for alpha equal to .05, .055, .06, ... , .085, while holding the other parameter values constant. The re-cycle feature allows different "fast-forward" conditions to be selected for each computation. A different (or same) parameter can now be computed while varying another parameter for a newly specified number of iterations.