Help contents
Preface
Highway Display
Spacetime Diagram Display
Quick Tutorial
Instructions on how to use the software
animation
creating objects
deleting objects
creating events
deleting events
creating intervals
creating invariant hyperbolas
creating light cones
jumping to objects
transforming up and down
shifting the screen
programming objects
setting birth and termination of objects
zooming in and out
using the object table and the event table
using the comments pane
A little bit of history