These are coming from a DGNLIB. To edit them, you must be in the DGNLIB file. And it must be in a read/write folder.
However, since they are also utility features, they are slightly different than regular features. From the looks of things, you cannot use linked XIN features as part of these types of features, but must have element templates.
So while you might be able to bulk load Element Templates via an XML file, the actual features must be entered one at a time.
This will not be a trivial task. And there are portions of this that are not explained in the regular Open Roads Help. I have no idea where the SUDA Help file is found.
However, since they are also utility features, they are slightly different than regular features. From the looks of things, you cannot use linked XIN features as part of these types of features, but must have element templates.
So while you might be able to bulk load Element Templates via an XML file, the actual features must be entered one at a time.
This will not be a trivial task. And there are portions of this that are not explained in the regular Open Roads Help. I have no idea where the SUDA Help file is found.