We have created a new category in our goat keepers community: “Veterinary first aid online”.
We want everyone to be able to ask questions in that category (by creating a new topic).
Once a question asked, we want only the members of the Veterinaries group and the topic owner to be able to answer.
A new permission type for this in the category permissions screen would be very helpful to implement our idea.
P.S. Our current workaround is to delete / move replies posted by the ones who are not allowed to reply. However, it feels rude and offends people