Using of DynW is straitforward : enter, click and get the results... This is only for the basic use and equations of the Models Zoo.
You may want to change something...
Choose a simple model like exponential or logistic.
Do not care of the equation, but play changing the parameters values or initial values. See how the simulation results vary.
Try also changing the Begin:Steps:End (steps indicate the number of steps between the beginning and end of the simulation.
see the examples in the zoo
How To : a list of question/answer