Basic instructions for the XPM

Function Keys are:
F1 Call up/Leave Main Menu.
F2 (Shift + F5) Clean top view.
F3 Call up manual tide setting.
F4 Step option.
F5 Refresh screen display.
F6 (Shift + F1) Zoom out Top View.
F7 (Shift + F2) Zoom in Top View.
F8 (Shift + F3) Zoom out Side View.
F9 (Shift + F4) Zoom in Side View.
F10 Call up Test Screens.
Alt F4 Quit program.

Do not try to run two demo programs at the same time!