at the moment, there can be a settings menu triggered to show the status of a few config variables like the current IPD with the space key, the FOV, distance to the screen, height of player and so on. There are individual keys to remember for each and every single setting. There are not only poor documented and not visible at all in the interface but additionally very difficult to hit with a HMD on my head...
It would be better, if there could be simply highlighted and de- and increased with the arrow keys (or the d-pad). While changing the values, there should only be this particular setting be visible so you could actually see
the difference while configuring them.