Not sure if this has been requested before. It would be really great if you could reference a firewall address list in IP–Services for allowed addresses. Very often you would have an address list of “management” IP ranges allowed in the firewall and this is often the same as winbox/SSH allowed IP’s.
And yes I get that you could simply create the required rules in the firewall to stop access to the services on the router anyway, but I like to have both options available.