Press [Ctrl][Shift][H] in the game then you have the following keys:

 [F]    Reveal map
 [K]    Bombs and grenades at the mouse pointer
 [G]    Gas at the mouse pointer

 [Shift][1] ... [Shift][0]                Different units
 [Strg][Shift][1] ... [Strg][Shift][0]    Different units for the enemy