When I try to enable lock screen widgets in my Samsung Mega 6.3 LTE with Kitkat 4.4.2 from Settings > Security it has no "Enable widgets" which was the solution in How do you add widgets to the lockscreen in KitKat? and How do I add a widget to my lock screen?.
How do I enable lock screen widgets in my Samsung Mega 6.3 SGH-M819N?