I tried to picked out all Meta Data classes into separate project and used InMemoryMetadataManager.

I wrote the next code:

public static void RegisterMetaData()
{
     InMemoryMetadataManager.AddTableAttributes<Log>(new ScaffoldTableAttribute(false));
     InMemoryMetadataManager.AddTableAttributes<User>(new MetadataTypeAttribute(typeof(UserMetaData)));
}
...
RegisterMetaData();
ContextConfiguration config = new ContextConfiguration 
{
      ScaffoldAllTables = true,
      MetadataProviderFactory = (type => new InMemoryMetadataTypeDescriptionProvider(type, new AssociatedMetadataTypeTypeDescriptionProvider(type)))
};
model.RegisterContext(typeof(Entities), config);

The result is that Log is not showed, but template for User is not applied.

 Hi Plsc_rover, could you re post you code as it is unclear just copy from VS and paste in to the "Insert code" tool.