In Notepad++ you can easily assign a HotKey to a majority of menu functions using Settings->Shortcut Mapper. In most programs that allow something similar, you are given a warning if you use a HotKey that is already in use. Say you want to assign "Sort Lines in Ascending Order" to [Ctrl+S], which is currently assigned "Save". In other programs I have used, it will either block you from assigning it or warn you that doing so will disassociate it with the other command. Notepad++ will allow you to duplicate the HotKey and you will be none the wiser. This is fine as long as I know that the HotKey I want to use is actually not assigned to anything, but there are a ton of commands, especially if you have a couple Plugins installed.
Is there a plugin or a file you can search, or some way to find if a HotKey combination has already been assigned?