You can set some of the parameters in the Preference window:
- the number of cells in the layout window when select "New" item in the "File" menu
- the color of background that is used in the "normal" 3D View
If the "Use Hardware Acceleration" checkbox is OFF then graphic card acceleration is not used.
With this setting it may be possible to use the application on older Macintoshes, but it will run slowly.
"Play Sound" checkbox is for switching the locomotive sound on or off.
Preferences Window
Key Control
You can change the keys assigned for the Walkthrough view at the "Key Control" tab. Click the blue text so it turns to red, then press the key you want for that command. You cannot change the arrow key assignments.
Prefarence Window