Except for the radar cheat, all these work in multi-player mode.

Undocumented key codes:

• +bps -- show graph of network lag time

• +radar -- see 100% of territory on radar

• +shareradar -- share your radar with your allies

• +sharemapping -- share your map info with your allies

• +setsharemetal ### -- sets the lower bound for automatic sharing of metal

• +setshareenergy ### -- sets the lower bound for automatic sharing of energy

• +shareenergy -- toggles automatic sharing of energy on / off

• +sharemetal -- toggles automatic sharing of metal on / off

Total Annihilation Keyboard Commands

Taken from the support site...

ESC	Cancels the current command before it is executed
1-9	Select the menu for the current unit
, (comma)	Select the previous menu for that unit
. (period)	Select the next menu for that unit
~ (tilde)	Toggle damage bars on the units
PAUSE	Pause the game
SHIFT	Hold down to queue up multiple commands
ENTER	Activate the message bar
TAB	Multi-Player specific options
F1	Display information on selected unit
F2	Toggle Options menu
F3	Go to the unit that last reported/chatted information
F4	Lists kills, losses, player name and colors
F5-F7	Map bookmarks
F8	Captures "movie" of gameplay (toggles on/off)
F9	Screen capture (will Print screen to file SHOT####.pcx)
F11	Switch modes (normal to debug)
F12	Clear all chat messages
CTRL+A	Select all units
CTRL+B	Selects all builders
CTRL+C	Select and center on Commander
CTRL+D	Self-destruct selected units (toggles on/off)
CTRL+S	Select all units in current view
CTRL+V	Selects all aircraft
CTRL+Z	Select all units of same type
CTRL1 - CTRL9	Assign the currently selected units to a squad
ALT1 - ALT9	Activate (select) the previously assigned squad
A	Give an attack order
B	Select the Build menu for that unit
C	Give a capture order
D	Use the Disintegrator Gun
E	Give a reclaim order
F	Toggles advanced AI (hold fire/return fire/fire at will)
G	Give a guard order
H	Share resources with another player (allies)
M	Give a move order
N	Scroll to the next unit off screen
O	Select the Order menu for the current unit
P	Give a patrol order
R	Give a repair order
S	Give a stop order (cancel any previous orders)
T	Track the selected unit
V	Toggles advanced AI (hold position/maneuver/roam)
-	Reduce the game speed
+	Increase the game speed