Edit Mode
The so-called Edit Mode is an alternative, optional mode which provides development-related functionality available in the Mount&Blade engine. When enabled provides many useful in-game development tools, including the scene editor, campaign map coordinates and scene generator. It's hidden and disabled by default.
Activating Edit Mode
Edit Mode can be enabled or disabled by using the Allow Edit mode checkbox in the Advanced tab of configuration menu of the game's launcher. Note that activating Edit Mode uses extra resources, slows down gameplay, and lengthens loading times because of the additional assets and processing necessary to run the editor, so it is advised to turn it off during normal play for optimum performance.
Works best together with the Cheats enabled, which provide a better debugging experience for avoiding mundane tasks.