This is quite frustrating. When trying to bind a linked project, Revit will force the project back to the primary design option of the linked project. Why? If we can't bring that option in then its not really an option. Stop cat fishing us Autodesk. Make options real options!
See forum link about problem here:https://forums.autodesk.com/t5/revit-architecture-forum/retain-desing-options-in-a-linked-revit-file...