Idea to save both the eBOM part along with it's downstream view, mBOM. This would help to enable engineering to make custom, one off, versions of complete assemblies that just have a minor modification.
If the business currently has an eBOM and mBOM and does a Save-As, only one view of the BOM can be saved. This means that the eBOM is saved to keep the eBOM with linked CAD. Then the mBOM must be created from scratch over again.
Save the mBOM along with the eBOM to maintain the equivalent link between the BOM and to preserve all location, logic, and visualization information.