I’m currently working on my own ”GlyphData.xml”. How can control the sort order for each category? Let’s say I wan’t them to appear in alphabetical order? How should I name them if I want my own category ”Dashes” to appear before Punctuation?
You cannot have private categories.
Citing the tutorial: Possible values are: Letter (letters like ‘x’ or ‘ä’), Number (figures like ‘3’), Mark (e.g. the acute mark), Punctuation (like the period or the comma), Separator (like the wordspace), Symbol (like the Emoji signs, arrows or the Radioactive symbol).