Add shortcut for quit kernel in Mathematica

1. Navigate to Program Files/Wolfram Research/.../.../SystemFiles/FrontEnd/TextResources/Windows/

2. Edit the KeyEventTranslations.tr file

3. Example: If you want to add a shortcut for quit kernel, then insert the following into the file:       

Item[KeyEvent["q", Modifiers -> {Control}],

               FrontEndExecute[

                       FrontEndToken[

                                SelectedNotebook[],

                                "EvaluatorQuit",

                                Automatic

                       ]

               ]

       ],

This will assign Ctrl+q as a shortcut for quit kernel