It seems that this thread was gone through a long time ago…However, as a mathematician who loves to use MN3 for paper summary, I strongly second to inline LaTeX support in MN3! If it requires too much work to implement that, It would be really great at least we could type our LaTeX expressions in the TITLE of Notes.
As an alternative, I am converting LaTeX expressions from “https://www.unicodeit.net/” to Unicode and pasting that.
Thank you!