Shortcuts
Select Options from the Tools menu
1. In the first section, you can select one or more screen edges. Then, instead of having to click on the Spartan icon in the system tray, you can simply push the mouse against any point on that screen edge and an activation button will appear directly under the mouse pointer.
2. In the second section,
you can select a hot key to activate Spartan. Typing that key at any time will
restore Spartan.
To minimize Spartan
without having to point to this 
small target, double click on any empty cell or press Esc.
Click in the help panel
or hit Esc.
F1 to F9 ............
Changes View.
Ctrl + F............... Find
F12 ..................... Find again
Shift + A to V ... Changes Sheet
Only available when
using Arrow keys and Enter.
P ............ Pastes the highlighted clip.
H ............ Hides Buttons.
M ........... Displays the right click menu.
S ........... Toggles between single character and three characted function
buttons.
Ctrl+P ... Puts highlighted clip on the Windows clipboard without pasting
it.
Ctrl+N ... Change
the font used for the cell numbering.