For these codes to work you need to have v1.06 patch or later. At the 'Tactical' screen Hold Ctrl and type 'gabbi'.

Reload selected characters AP:
Alt + D

Teleport character to the point under your cursor:
Alt + t

Damage character under pointer:
Alt + h
At the map screen teleport squad to the sector under cursor:
Ctrl + T

Kill all enemies in sector:
Alt + (auto resolve)
Kill all enemies in current sector:
Alt + o

Force away Merc to join force:
Space + Left click
Abort enemies turn:
Alt + Enter

All items and characters visible:
Alt + e

Reload seclected characters weapon:
Alt + r

Other (usually tactical screen) 100 points of damage to all enemies in sector:
Alt + O

Character sits in Wheelchair:
Alt + 4

Character transforms into Monster:
Alt + 5

Create new character on Map:
Alt + G
Mustard gas Explosion:
Alt + K

Spawn enemy at Pointer:
Alt + B

Spawn item (usually a weapon) at pointer:
Alt + I