Modernextend for genMultistateOutput cluster

[MikaFromTheRoof]

Hey there,

I would like to write an external converter for a Zigbee device I built, that combines a light endpoint with a multistate endpoint, that contains the genMultistateOutput cluster.

Since I always use the modernextends for light endpoints I wondered if there is also a modernextend for the genMultistateOutput cluster. And if there is none, is it possible to add it in the future as a new feature?

Thanks!