Representation of XDtcDeviceTagCheck.Hierarchy.UserCharacters setting value. In P8-GUI it can be found in the "File" -> "Settings..." Projects/<project>/Devices/DT syntax check:Structure identifier/Special text characters. It provides possibility to enhance allowed characters used in DeviceTag syntax. To use this property AllowUserCharacters must be true like also EnableSyntaxCheck must be true

public string UserCharacters {get; set;}

public:
property String^ UserCharacters {
   String^ get();
   void set (    String^ value);
}