A few months ago, Autodesk released the Volume Dashboard Extension for subscription customers. The volume dashboard is a more compact way of tracking multiple volume surfaces, bounded volumes, and finally generating reports within or outside of the drawing.
You should now see the dashboard under the extension manager.
After you right click and select execute, the new volume dashboard should appear.
The new dashboard allows you to keep track of all the volume surfaces created. The boundary option is similar to the bounded volume tool that currently exists in the software. As seen in the capture below, the dashboard boundary allows for tracking bounded areas within a given volume surface.
Finally, the dashboard allows for creating a volume report, or inserting a table into Civil 3D respectively.
Users will be now be able to calculate, report and visualize surface volumes very quickly and all in one location.