Dear Cyril,
Do you think that ALL users read this forum on a daily basis? Do you REALLY believe that your needs are the same than other people’s need? If I may, I find your last post quite inappropriate, for Dorico’s team has proven enough that they DO listen to our needs.
I’m no developer myself (but with an engineer level, I think I’m not mistaken), but I’m quite confident that implementing the notehead editor and fulfilling your dreams about expression maps are two very different tasks. No pun intended. But please keep a respectful tone in this forum 