This is just a quick list of the demos contents:

demo1    : how to stitch textures ?
demo2    : how to use (some) flags ?
demo3    : how to use simple elevators ?
demo4    : how to use simple line triggers (switches) ?
demo5    : how to use multiple class elevators ?
demo6    : how to use second altitudes (rivers & platforms) ?
demo7    : how to use teleporter chutes ?
