Person Features such as Proximate

Is it possible to define person features other than the predefined ones (first, second, third, non-first…) in the Grammar Matrix? For example, proximate.

No, I don’t think so, but I also don’t think that “proximate” is a person value per se. That term usually goes with switch-reference systems. It might be possible to model these with the direct-inverse machinery, but probably we need an additional library.

Thanks. For inference purposes, I’ll ignore this feature.