Vuforia + button transitions AR/VR

Hi,

I have been using "Vuforia AR+VR Sample" kit from Unity Asset Store as a base for the AR+VR project.

1. The asset itself contains ready made VR/AR buttons that works fine. The problems is that if I duplicate the existing buttons - those cannot be used at all. Even when the setup is identical. Normally it works that if you point the "reticle" target for the "VRButton" - it will activate it and the camera moves to "VRWorld". The scene will stay same. Also it seems to hide everything else when you are in the VR mode by showing only the specific game object folder. Somehow adding more similar buttons are not working. Is it somehow related to the scripts or what I'm missing here?

2. What would be the easiest way to use the same technique, but add more buttons that could be specified that what game object folder to show? Thanks!