There are some features that will not work is particular resources are not on the machine. Today I got caught with the Psalm Explorer and the Lexham Hebrew Bible. Although I remembered the issue had come up in the forum, the returned results were too extensive to find a relevant post. Verbum Help and the Help Center provided no help. Finally, the About on the interactive provided the name of the required book although it implied is was needed only for Hebrew not for parallelism and structure. In short, if I didn't know exactly what the problem was, I would have never found the answer. The documentation needs to indicate which resources must be downloaded (not merely owned) for a resource to work.