KillBind: Press set key to die. Useful when you're stuck or just want to have a funny moment.

SelfKick: You can kick yourself out of a lobby by pressing set key. Useful if you're glitched when loading into a server.

FPSSpectate: Press V or set key to switch between third person and first person view of the player you're spectating.

SpectatePreviousPlayer: Press RMB to switch back to the previous player you were spectating.

LastRunResult: Hold T to see last run's result (collected scrap).

ScrollFix: Reverses hotbar scrolling without messing up terminal scrolling. (If you changed your scroll wheel settings, make sure to revert it!)

FlashlightToggle: Press F or set key to toggle flashlight without having to hold it in your hand.

WalkieUse: Hold R or set key to use your walkie talkie without having to hold it in your hand.

SpectateEnemies: Make sure to configurate the settings of this mod as it may be incompatible with some other mods' controls! Press RMB or set key (F recommended) to turn on/off flashlight, press E or set key to switch between monster and player spectating.

ToggleMute: Press M or set key to mute yourself.

The keys are configurable in the Settings of Lethal Company or LethalConfig. You can find both in the main menu.