In France we usally can travel in the cockpit with AF, just asking it at the beginnig of the flight and showing a professional card.
We can also apply for a "technical flight" (once every 2-3 years)and then we follow the AF crew from Paris to Paris.
And I don't know if you do that too ,but we have a ppl training at ATCO school and we can get about 12 hours flight paid by administration....It's very nice and very usefull whan you handle lots of VFR flights