Hi Peter,
I saw the manual for the TomTom Navigator SDK (Version 3.0 build 193), and in support for development in C + +, there are commands to access the menu of TomTom.
Among these, I would use KQuickCmdAlternative and KQuickCmdAlternativeRoutes, to set the alternative route, once loaded a route.
I can access these commands with the "TomTom In The Hand"?
Thanks,
Carlo