Dear Hwang, Many thanks for you Hwang. However, I have aproblem when changing language. I did as what you told me to do. After the first time running the modified simulation, it works well. I went back to Variables against, went to language and continued change the rest of values. But in this time, when I click on run button, it was loading too long and stayed at value 67% of loading. Finally, the erro windown apeared. I trying to opend a new one and start from beginning but I stil get the same erro Can you tell me what should I do? Best regards Benson