I’d like to be able to export all the features into an external file, preferably human-readable, and import them back into the font later. This will help me save “working version” of the features, together with all my workarounds, that will survive changes in future versions of glyphs app.
It’ll be even better if I can export multiple instances of the feature files. For example when I work on a typeface with multiple scripts, I’d like to be able to work on one script at a time and export the features for that script.
The import should be able to accept multiple input files and add on to the features.