(define-key global-map ?s-p » 'ns-print-buffer)
keysym BackSpace = Delete
keysym Delete = BackSpace
remove Lock = Caps_Lock
keycode 0x42 = Control_L
add Control = Control_L
The normal xterm mouse functionality for such clicks is still available by holding down the SHIFT key when you press the mouse button
"xkb configuration is black magic in general and sheer luck in Ubuntu."