WebXR vertical recentering

Hi there,
First of all, I’m a newbie to three.js and the question may be silly but nevertheless…

With the help of the menu/main button (by keeping it pressed for some time) of a controller, we can re-center view horizontally.
Is there any way to do the same vertically? For example, if one wants to use an app by lying down.

It seems like you have to control that manually, e.g. determine the position of your headset and re-position all the elements. Is it the right way to achieve this?

/cc