Download the module and modify ROOT_UNCstub.ps1 - out of the box it lists just the current server. You will probably want to add more from one of the inventories. Contribute more on Github.
This module expects the Bell framework to run under an account that has enough permissions to access other servers using admin shares (C$, D$...) or other share names. The sample uses only admin shares, an it's not a good idea to give access to the root of C$ and other drives, it makes sense to give log and config directories of your apps as starting points.
This module allows you to browse files and directories, but you can see only files of the following types: txt, xml, log, config. You can check the contents of these files in the Bell application, but if file is longer than 30000 bytes it is downloaded instead. Of course, all these settings you can change in UNC_dir.ps1