Latest update added the ability to control Simobjects so, this was a big step forward for us.
However, is still not possible to create a menu inside the sim using Simconnect. We thought about doing an external menu, like other apps are doing but, it will be an half-baked solution, which won't work in VR, so we rather wait a bit to get a "proper" menu that will work like any other MSFS menu and can be used in any mode, including VR.