MSFS
The reason of the question was because, while in P3D there's a Camera API, so GSX created a custom Top-down camera View to make it easier to select objects because (due to the Camera API) we also have Mouse clicks available, in MSFS there's no Camera API, and there's no way to setup a Camera programmatically, so GSX in MSFS can't do that.
The only thing GSX Pro does in MSFS, is to switch to the Showcase camera automatically, buy it will take whatever settings of location, speed, zoom it has been setup to, in the sim or the saved flight, GSX has no part how the camera is configured.