I have written some example programs that allow you to change the parameter settings in Dynare and Dynare++ source files. This makes it possible to, for example, loop over a range of parameter values, obtain a solution for each, and then compare the solutions in one graph.
In particular, for Dynare++ the example program loops over the parameter of risk aversion and the order of the perturbation solution and shows that increasing the order does little when risk aversion is low but does affect the simulated series when risk aversion is high.
These programs can be found at