put your departure and destination in and any other waypoints
It is the "any other way-points" that is the problem - the NOTAM site only accepts flight plan style routes which is not exactly user friendly. You cannot, for example, enter another airfield as a way-point
(or can you anyone?).
Narrow route is still my preferred method though - I use VORs etc near to my route and then just widen the width as necessary to make sure I get the necessary coverage.