multi group comparisons in RAM

Hello! I'm very new to R and OpenMx. I recently successfully ran a model I was interested in with a lot of pathways. The next step in my data analytic plan is to test whether the strength of all these pathways in this model are different for men and women. I was told I could use multi group analyses in order to test this. I planned on building an identical model for men and for women allowing gender to vary, and then constricting gender pathways to 1, and compare these two approaches. However, I haven't found any examples yet of someone who has done this. Any help would be greatly appreciated!