This is no different from or without MagicalRecord. This is a common master data scenario. Once you have created and registered your AFIncrementalStore, just call
-[NSPersistentStoreCoordinator addPersistentStoreWithType:configuration:URL:options:error:]
You are reading Basic docs for this method for more information.
MagicalRecord, when you use the assembly in the stack helpers, you can use [NSPersistentStoreCoordinator MR_defaultCoordinator] to get the instance of the coordinator to which you want to attach the repository.
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