Feature request: The ability to export stylistic set 30 to 99 with feature names

[FlorianPircher]

According to the OpenType spec, ss## features are intended for style sets that change a group of glyphs. I suspect your font does not have more than 19 different style sets but instead many variants of individual glyphs. For that, there are character variants (cv01–cv99), see the following thread for details:

Extending the 20 Stylistic sets OpenType limitation

This sounds like a perfect fit for Character Variants features (cv01-cv99). You’d add all alternates for a letter (incl. related letters) in one feature like this: sub a from [a.alt1 a.alt2 a.alt3 a.alt4]; sub aacute from [aacute.alt1 aacute.alt2 aacute.alt3 aacute.alt4]; etc. I think the Glyphs panel in Adobe apps will offer them, but not 100% sure.