The Remote Deicing feature already works with P3D and even FSX. However, even if you create a custom deicing area in the airport profile, it won't be possible to have the Deicing VGDS display shown in the video, because we just haven't modeled it in P3D.
It might come in the 2nd step of the update: this is just a first iteration, without any visual editing feature so, basically, right now you just taxi to anywhere, and call Deice.
