It is possible to scan network drives using NXPowerLite Quick Scan Utility, but you may need to add the location(s) in a specific manner.
If you attempt to add a network mapped drive using the Add Folder button in the Quick Scan utility, you may see the message:
The selected item is not a file system directory.
If this is the case, go to the File menu and select the Add Multiple Folders... entry. You then need to enter each location as a UNC path, e.g.:
Note you will need to add the path including the share, you cannot scan from the root of the server.