Currently I have an S.ss02; I want that glyph to have an SS ligature, so I made an S_S.ss02.liga.
It shows up in the Font Features box as
sub S.ss02 S.ss02 by S_S.ss02.liga;, but when I test it out in InDesign, it doesn’t seem to work.
I’m wondering if it’s possible to have ligatures in stylistic sets? If it is, what am I doing wrong?