The file is ~/.config/openbox/lxqt-rc.xml. Since it's in your home folder (~), you don't need to sudo anything. I'm not sure what file you're looking at but it's most certainly not the right one based on what you're explaining or unless you broke something. That said, there's no reason why nano can't do the trick, but it might be wise to just open it up in a graphical editor since it's a little more user friendly.
If that still fails then copy /etc/xdg/openbox/lxqt-rc.xml to ~/.config/openbox/lxqt-rc.xml and then follow the instructions above. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1768294 Title: "eject" key doesn't open optical drive tray in Openbox To manage notifications about this bug go to: https://bugs.launchpad.net/lubuntu-next/+bug/1768294/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
