Only a few font editors can edit the OpenType math tables (useful for TeX, LaTeX or Word):
FontForge, and Glyphs (via a plugin).
However, only the Glyphs's plugin has a nice interface to edit the mathematical features of the font (character substitution, extensible and big delimiters, accents, etc...).
Thanks for the suggestion. We don't yet have any support for authoring OpenType features (apart from the ones automatically generated by fontmake/fontc based on anchors), but it is on our roadmap.
Only a few font editors can edit the OpenType math tables (useful for TeX, LaTeX or Word): FontForge, and Glyphs (via a plugin).
However, only the Glyphs's plugin has a nice interface to edit the mathematical features of the font (character substitution, extensible and big delimiters, accents, etc...).