You can save reference edits to a grandchild file. The multi-level save reference feature supports edits in a similar way as the single-level case but is more limited because of the added complexity of the reference structure.
Here is the reference hierarchy of a file:
Consider this scenario: you are making a computer game that requires a city map with different blocks and parks.
The reference hierarchy is as follows:
Great-Grandchild File: Grass.mb
You are currently working on the map file and you reference the city block file (which is referencing the park file).You can modify the park file from the map file and save the edits to the Park.mb file. However, if you try to modify the grass file (which is referenced by the park file), this would not be allowed because the file is below the grandchild file in the file hierarchy.