There are several ways to assign a hotkey to a particular piece of functionality in Blender. The most well-known is probably right-clicking on a menu item and selecting Add Shortcut, which works great most of the time. Once applied, shortcuts can be changed or removed in a similar manner via Change Shortcut and Remove Shortcut. However, it is possible to get into a situation where a key combination is applied that cannot be removed in this manner, and cannot be re-applied to another piece of functionality. The method below can be used to remove these duplicate assignments.