With mouse and touch events it's easy to fetch clicks anywhere on the canvas and convert to ath/atv:
Code
<events name="click" keep="true" onclick="on_click()" />
<action name="on_click">
screentosphere(mouse.x,mouse.y,click_ath,click_atv);
</action>
Now, I would like to do the same with VR controllers. Is that possible?