I am working a duplexed font so i would like to use Link Metrics With Master
But I would also like to have the option of some glyph to not be duplexed (i, l, etc.) under an opentype stylistic feature.
For that I would need the possibility to designate some glyphs as NOT duplexed.
Having to work with == on every glyphs is very annoying, especially when working with multiple masters (even with scripting, I have a width axis).
It would make more sense to me if == (in the width metric) would take over the Link Metrics With Master value and force the width of the glyph.
Could that be made possible? Or do you see another way to achieve this?