With command steady, I would like to specify which model to use for computing the steady state.

In my .mod file, I first declare all the variables of the model, after I declare the model and the initial values, and then I use the command steady to compute the steady state of the model. For computing the steady state, (with the command steady) I would like Dynare to use a different model then the one declared before (in the file .mod).

How can I specify to Dynare which model to use with the command steady?

Thank you!