Controlling DBML EntityRef creation in DBML with multiple foreign keys

Question

Using Linq to SQL and the autogeneration capabilities of DBML, foreign key relationships create EntityRefs in the DBML designer file. For example :

private int _USStateId;

private EntityRef<USState> _USState;

However, if I have the need for a table with numerous FK relationships to the same table, how can i control the autogenerated names? For example, for a Car survey with three FKs into a Ratings table, I get

private int _BodyRatingId;
private int _ColorRatingId;
private int _PerformanceRatingId;

in my Car table with

private EntityRef<Rating> _Rating;
private EntityRef<Rating> _Rating1;
private EntityRef<Rating> _Rating2;

How can I, dynamically or other wise, control the EntityRef naming to indicate that they pertain to a particular field?

Thanks!