There should be an easy way to transfer your Saved Custom Configurations for Practice over to the Levels tab for your Classes, or a way to Share a Saved Custom Configuration. Currently it seems we have to recreate our custom settings separately in the Levels tab. This would make exam preparation much smoother for classes.
As a part of adding this feature, it would be good to invest some development in organizing/managing saved configurations. As it stands, using saved configurations becomes more and more cumbersome the more one wants to edit or tweak something for a particular application. Being able to retitle, copy, edit, transfer to assignments for classes, and organize practice exercises into folders would greatly enhance functionality.