Hello, I'm trying to use LuaLaTeX with luamplib. I'm testing some Metapost code inside mplibcode environnement but the btex etex markers don't seem to work. I would like to know how I can do without them to have luatex typset my labels inside my Metapost code. If there's no way to do this, is it planned to have similar method to do this. Thank you. Arthur