Hi
Set the frequency range into the appropriate window (the icon with a sinus wave) - dont forget to start after the cutoff frequency! In the frequency domain solver the smaller the frequecy the faster the simulation is.
Then you open the !F window, you can leave the settings as they are - default. Just click on "adaptative tetrahedral mesh refinement", and on use "broadband frequency sweep".
Please note this simulation may take longer than the other ones done with the transient solver.
good luck!