How to use mixture normal for shocks in Dynare

Hi All,
I am wondering that if i want one of my shock to follow a mixture normal distribution, how to do this in Dynare? or I need to write separate m file to allow for mixture normal distribution for shocks?
Thank you.

Please read [Stochastic Simulation based on Non-Normal Shocks) and the link therein. Maybe that answers your question.

Thank you!