Freeview is a visualization tool similar in functionality to tkmedit, tksurfer, and scuba. It differs from tkmedit in that it can load multiple volumes at once and can be used to visualize high resolution (100um) data as well as tractography splines.
This guide begins with a section on FreeviewGeneralUsage that explains how to use Freeview to view anatomical data and gives an overview of the interface. The FreeviewWorkingWithData section then covers each type of data that can be viewed and changed and how to use the tools relating to each. It ends with a FreeviewReference section covering menus, tools, and command line options.