Currently, it is possible to run a 3D-FSC job after refinement, but it is a bit fiddly (e.g. it will not take a mask directly from a refinement job), and it requires a certain level of expertise to know that you should run it.
Would it be possible to add a simplified directional FSC to the output of the final iteration of refinement jobs (i.e. homogeneous, heterogeneous and non uniform)? I am thinking just a plot with three FSCs, calculated in cones along the x/y/z axes.
This would be very useful to get an "at a glance" idea of whether your structure has anisotropic resolution, which would be very useful feedback for all users. It would also be very useful to monitor the progress of classification (and to quickly identify cases where ab initio separates per view, which still happens on occasion).