I am new to flexsim, and I have a basic model with two sources, a queue, a processor, and two sinks. I would like to add a label for a future "due date" when a flow item is created, and then if the item is processed before the "due date" it is placed in the on time sink, else it is placed in the late sink. I would like this "due date" label to be assigned based on a statistical distribution, i.e. assign a future date an average of x hours in advance with a std deviation of y hours from when it was created.