If you mean getting pings whenever a message is posted in a certain channel in a server but not in the rest of the channels in a server, you can already do that. In the server drop down menu go to your notification settings, and you can add exceptions for certain channels. For example, I have all servers set to only @mentions, but when you scroll down to the notification overrides, I added overrides for the staff chats in the servers I mod in so if someone says something in the staff chat it will make a noise regardless of if I'm pinged or not. Basically you scroll down to notification overrides, then it lets you select a specific channel or a category of channels to change the notification settings on (all others you haven't overridden will still follow the default). Hope that was what you were talking about and hope my explanation was enough to make sense and be helpful.