Change of course in PPL flight.

Hello.
When I took the PPL in the North of France, the inspector examiner asked me to prepare a flight from LFQT Merville to LFOP Rouen.
On the day of the exam, after about half an hour of flight, he asked me to take him to LFAQ Amiens (without GPS).
So I had to review the route to follow on my paper map in mid-flight, trace it and make the necessary calculations to tell him our arrival time.
So I was wondering if it would not be possible with Navigraph to click on the place to go (diversion) and display a small window of the course to follow and the distance to travelfrom the current position of the aircraft.
Thank you.
I remain at your disposal for any possible questions.
FS2020 - Integrated Navigraph.
Raymond DESACHY.