I use gamultiobj to do a multiobjective optimization. It is possible to see the changes of parato front graphically in each iteration through the option setting. I can see the final pareto set, variable set and population of all the variables at the end of optimization. However, I want to save the population set and pareto solution set over each iteration over the optimization. In my problem I use population size 50 for 12 variables. Please help me on this.