Brussilov

Good afternoon, still enjoying this great piece of software I'm struggeling to find where to edit/set a ressource's property so that is does or doesn't become a "NM Objective" displayed in red color on the map. So far only found how to specify capitals/ICs. Right-click on a ressource returns only a view on properties, eg. City/NM Objective. Or does it have to be done somewhere in the scripts ? Any hint would be appreciated Thanks Brussilov