Thanks for getting back to me so quickly, sorry for the delay answering have been away...
I have tried toggling view but doesn't make any difference.
The ICAO code, airport designation EGNC, and even the name place 'Carlisle' don't show up in the 'find airport' box either so it definitely doesn't exist in my G Plan download.

It's not that important, I can still use G Plan, I just wonder if anymore airports are missing I don't know about yet !
Regards, Joned

Example Flight Plan in user Manual...
This is my first post. I have searched for this query but not found a mention so here goes.
Page 85 of the user manual gives a 'demo' flight plan from Carlisle to Liverpool. So I thought this would be a good place to start my Plan G experience.
The flight starts at Carlisle, and we are told to enter the ICAO code EGNC. That's when I got no further because there isn't a Carlisle airport (EGNC) on the map !
Any suggestions ?