In Preview 10, Assist window, move to locations list, there are now runway items that are called Hold Short that we can warp to instead of directly onto the runway. These are temporary, and not the real places on the taxiway where we would actually taxi to before moving onto the runway. They are just off the runway opposite the take-off starting place. So we can warp there and contact ATC for take-off.
After landing we can also warp off the runway to a hold short location before warping to the parking place we are given. I might have time to do something better after landing by moving off automatically and include the option in the Assist settings.
Do you think this will work OK for you for the time being?