The UnitGroup Property. When first UnitID is set,the group is automatically defined by the unit. While setting a Group also the Unit can be changed to the first Unit in new Group if: - new Group is different than the Group of assigned Unit - there is no Unit and Group assigned When new assigned Group is the same like Unit Group, nothing will change. The unitparser can never convert units of different groups

public UnitGroup Group {get; set;}

public:
property UnitGroup Group {
   UnitGroup get();
   void set (    UnitGroup value);
}