Using "Languages" sidebar with custom GlyphData?

[Norbert]

Yes, you can. See

Can i add a new language alphabet table here？

Here’s what I did for Buginese: { languages = ( { name = "Southeast Asia"; subGroup = ( { name = Buginese; icon = bugineseTemplate; predicate = "script == \"buginese\" or name == \"pangrangkep-java\""; subGroup = ( { name = Letters; coverage = ( "ka-bugi"…

for an example (done before Buginese was added to Glyphs).