Seting Up A New Sub Category In A Group ?

[+GeoGordie]

Trying to add either a sub category or drop down box option to use in the NC Historical Marker group.

Granted, there are a LOT of standard issued NC markers with State designator numbers at the top of the marker. BUT .. there are also a LARGE amount of other historical markers along our streets and highways that indicate historical facts for that area or an event. These do not have the designator numbers and are set up by local historical groups. I would like to include these in the marker group, just in a different section .... HOW ??

 

Thanks ...

GeoGordie