RayVentory Scan Engine can be used to more easily run the Oracle's Database Feature Usage Statistics script (DFUS) on multiple target databases at once and collect the output as .ndi file.
To use this option in the settings under Oracle Database Feature Usage Statistics script path the path to a copy of the DFUS script needs to be set. Furthermore, it is necessary to set a path to the SQLplus executable located in the local Oracle client installation.
To execute feature usage calculation on one or more Oracle databases select them in the Oracle view, press the Right Mouse Button to open a context menu, and select Usage statistics....
Alternatively, it is possible invoke the same functionality by pressing the button Database Usage Statistics... from the right hand sidebar. This applies to the currently selected item(s) as well.