I'm looking for advice.
I'm working on font that contains Cyrillic characters and I'm having issue with locl feature.
There would be 3 Cyrillic sets: Russian, Bulgarian and Serbian.
Default Cyrillic characters (ISO 8859-5) would be Russian.
Since Serbian language is not supported (yet) by Adobe, so it doesn't make sense to place it under lolc feature, I'm not sure under what OT feature to offer it, to make it accessible for users.
I already use calt and salt features for another characters.
The only features left unused in Illustrator CS6 are dlig, cswh, titl, ordinals and fractions.
Does it make sense to place Serbian characters under any of these features (except in ordinals or fractions)?
Is there maybe some more logical solution for this?