I copied the contents of
/Applications/Glyphs.app/Contents/Frameworks/GlyphsCore.framework/Versions/A/Resources/GlyphData.xml into a new
.xml file, and placed this into a folder named
Info next to my glyphs file (as per https://glyphsapp.com/tools/editglyphdata).
I am unable to open this file in EditGlyphData.app. There’s no error/crash, just nothing happens. I also tried opening
GlyphData.xml, and this didn’t work either. I created a new EditGlyphData.app file (even created an intital unicode entry, so the file wasn’t blank, in case that helped), and selected Merge, navigated to both
GlyphData.xml and my custom
.xml file, and these didn’t work.
EditGlyphData.app, Version 1.0 (2)
MacOS Mojave, Version 10.14 (18A391)