@Incandenza
here the link
https://ww1.jeppesen.com/industry-so...d-training.jsp
you can view their training schedule (FRA, DXB etc.. whichever suits)
I know a guy who done it in Denver with Jeppessen (it works out cheaper to do it in US)
their initial flight planning training is in UK, far as I know they use Jetplan...
let me know if you need me to pm you more info and contact details for FRA Neu-Isenburg Jep.