A session file is a record of the actions performed during a CFX-Pre session, saved in a file as commands. The actions that cause commands to be written to a session file include:
Viewer manipulation performed using the commands available by right-clicking in the viewer window.
All actions available from the File and Edit menus.
Creation of expressions.
Creation of new objects and changes to an object committed by clicking or on any of the panels available from the Tools and Insert menus/toolbars.
Commands issued in the Command Editor dialog box.
Mesh import, delete, and transformation operations.