Well, I tried entering lat/long but kept getting 'syntax error'.....
Thanks anyway - it is indeed better than the previous system.
I'd still prefer to be able to 'stick pins' in an electronic version of the CAA 1/2 mill chart to define my route.
And to have drop-downs for the time and date.
And to have the resulting NOTAMs displayed on a chart showing position and radius of activity where applicable.