This is actually my problem also.
FeedTheBeast Direwolf20 Modpack is not working with this. Tried rebinding different keys, didn't work, tried restarting the game, didn't work... not sure what else to do here. It's in the enabled mods list on FTB for the pack though so idk. The coordinates thing at the top shows up too.
Edit: The keybinds do show up however.
Edit: I got it to work. X is a conflicting keybind, change the other X keybind to nothing.
Edit 2: However the light thing doesn't work.