Mount & Blade II: Bannerlord PC Cheats:

First, you'll need to make an edit to a single file. Head to this location on your PC: Documents > Mount and Blade II Bannerlord > engine_config.txt

Open it with a text editor like Notepad , and look for this line: cheat_mode = 0

Change 0 to 1 and save the file.

Once you've done this, launch Bannerlord, and you'll be able to use cheats. I've tested all the cheats below, and they work. 

Ctrl + F4: In combat, knocks out an enemy.

Ctrl + Alt + F4: Knocks out entire enemy army.

Ctrl + H: Heals you to full health.

Ctrl + Shift + H: Heals your horse to full health.

Ctrl + F2: Knocks out one of your own soldiers.

Ctrl + F3: Knocks out the player.

Ctrl + Shift + F3: Knocks out your horse

Ctrl + left click: Holding Ctrl while you left click teleports you anywhere on the map you wish to go.