How can i use cheats ?

Afaik i have to type one of these:

While playing the game, enter one of the following codes:

Cheat Code Result
macleod Invincibility
keymaster Armor, health, ammo
dirtyharry Infinite ammo
buzz Glider wings
framerate Display framerate
phantom Press [F11] and [F12] to spy
gohome Reset at starting position
thrasher View all enemies on radar
snipsnip Toggle character's sex
timewarp Toggle timer
bigears Toggle sounds
showall Full map
weaponcam Camera follows ammo
singletrac "Singletrac Rules!" message

==> But how can i toggle some kind of console to type in these codes ?

Just type them in blind with your keyboard when playing. You don't need console for these cheats.