OpenKneeboard VS OpenXR-OverlayLayer

DCS Scratchpad, Open Kneeboard, Joystick Gremlin and HidHide, VoiceAttack, Tacview, and if I may self-promote for a moment, DCS AutoMate.

Check out OpenKneeboard. You can install (VR and non-VR) and have an image for each aircraft with key performance and engine management data. I like to grab a screenshot from this YT channel.

OpenKneeboard might be able to solve this problem. You can bind commands to a joystick or other device, and if that doesn't work, it also has some utility executables that you could have your button box call to control it.

There are - e.g https://openkneeboard.com , and the menu in openxr toolkit works the same way.

The website lists installation steps, troubleshooting and has a FAQ.

Open kneeboard https://github.com/OpenKneeboard/OpenKneeboard

Open Kneeboard to organize multiple kneeboard tabs in VR or flatscreen (if software counts)

Check out https://openkneeboard.com/

EXTX https://github.com/LunarG/OpenXR-OverlayLayer

This is what the lunarg layer (https://github.com/LunarG/OpenXR-OverlayLayer) is

By the way, do you think the experimental overlay support extention XR_EXTX_overlay will be finalized anytime soon, or would it still take a long time? Monado supports it and LunarG implementation makes it work on WMR or Meta. https://github.com/LunarG/OpenXR-OverlayLayer Maybe overlay devs should just support the experimental extention(if the extention was supported on all runtimes) if it is going to take a long time anyway.

No, OpenXR does not currently have an overlay system. There is a draft spec and some examples at https://github.com/LunarG/OpenXR-OverlayLayer but that repo hasn't been touched for over a year and I doubt any OpenXR runtimes support it.

Not quite yet, there is an experimental Overlay API that will enable such functionality, but I have not seen any real-world usage of it yet.

You can also look at the documentation of LunarG's XR_EXTX_overlay layer https://github.com/LunarG/OpenXR-OverlayLayer or ultraleap's XR_EXT_hand_tracking layer (even though this one is closed source) https://github.com/ultraleap/OpenXRHandTracking

SteamVR does not support OpenXR overlay apps natively, but there is an API layer that can add this capability to any OpenXR runtime, though it has some limitations, and also only works on Windows with Direct3D I believe.