VR with Custom Reflect Viewer

Hi there,

I am new to unity, trying to used it for AEC projects, using unity Reflect.
We had developed a custom viewer including some new utilities, starting from the unity reflect viewer prefab.
When we try VR with our HP Headset, Original Reflect Viewer stars steamVR for using VR on the viewer. Nevertheless, when we try it with our custom viewer nothing happens. We had not remove any funtionality from the original viewer, only added new buttoms and utilities, so we do not really understand why this is happening if we had not change anything from the original viewer.

Some information about it will really come on handy.
Regards.