The electric and magnetic far fields are computed at every node on the far field sphere. These fields are then used to compute all of the antenna results and patterns, as well as the power flux density. You can view any of these fields with a standard field annotation, although you will have to zoom out to be able to see them. While the electric and magnetic far fields are computed at all frequencies, you can only view the fields indicated by the Antenna Far Fields > Output Frequency setting in the simulation setup dialog box.
You can also view the power flux density in the far field, again with a standard field annotation. The power flux density annotation uses the shaped far field meshes, so that power flux annotations show the 3D unscaled antenna pattern.