Sorry for so many questions.
I attached buttons to the camera so that they always remain in sight. On the laptop this works fine. But when I play the game in smartphone VR, I can’t click the buttons because I can’t move the black dot towards the button. Is there a solution to this?
I have now solved it like this: at the top along all the walls in the room I have created an elongated text panel, so that there is always a panel in sight. I added the text panels to a list. Instead of ‘when clicking on the text panel’ it is now ‘when clicking on an element from the list’. It’s a bit cumbersome, but it works.