To use this capability, select the Specify Depth radio button and select the type of comparison you'd like to perform from the drop-down box (options include "greater than", "less than", "equal to", and "between"). Finally, enter the minimum and / or maximum depths.
How Depths are Computed
It's important to understand that the depth of a file system object is always computed relative to it's path root, and is therefore an "absolute" depth.
Here's an example of how FolderSizes computes the depth of a local file system path:
C:\Program Files\Key Metric Software\FolderSizes 7\FolderSizes.exe
FolderSizes starts by assigning the root path (in this case "c:\") a depth of 1, and then incrementing for each path segment. Therefore, the file "FolderSizes.exe" in the example above has an absolute depth of 5.
Another example for a UNC network path:
In the case above, the root path is "\\server\share", and the absolute depth of "subfolder2" is 3.