Копирование связанных данных Entity Framework

Есть база данных, со связанными таблицами. Entity Framework Code First

Таблица 1.

    public class Student
    {
    public Student()
    {
        CourseWork = new ObservableCollection<CourseWork>();
        StateAtt = new ObservableCollection<StateAttestation>();
        AddInfo = new ObservableCollection<AdditionalInformation>();
        Practice = new ObservableCollection<Practice>();
        Discipline = new ObservableCollection<Discipline>();
        Electives = new ObservableCollection<Electives>();
    }
    private ObservableCollection<CourseWork> _courseWork;
    private ObservableCollection<StateAttestation> _stateAtt;
    private ObservableCollection<AdditionalInformation> _addInfo;
    private ObservableCollection<Practice> _practice;
    private ObservableCollection<Discipline> _discipline;
    private ObservableCollection<Electives> _electives;
    public virtual ObservableCollection<CourseWork> CourseWork
    {
        get { return _courseWork; } set { _courseWork = value; }
    }
    public virtual ObservableCollection<StateAttestation> StateAtt
    {
        get { return _stateAtt; } set { _stateAtt = value; }
    }
    public virtual ObservableCollection<AdditionalInformation> AddInfo
    {
        get { return _addInfo; } set { _addInfo = value; }
    }
    public virtual ObservableCollection<Practice> Practice
    {
        get { return _practice; } set { _practice = value; }
    }
    public virtual ObservableCollection<Discipline> Discipline
    {
        get { return _discipline; } set { _discipline = value; }
    }
    public virtual ObservableCollection<Electives> Electives
    {
        get { return _electives; } set { _electives = value; }
    }
    [Key]
    public int StudentID { get; set; }
    [Required]
    public string FullName { get; set; }
    [Required]
    public DateTime BirthDate { get; set; }
    [MaxLength(265)]
    public string PreviousLevelEducation { get; set; }
    public int RegistrationNumber { get; set; }
    [Required]
    public DateTime ExtraditionDate { get; set; }
    [Required]
    public bool ExcellentAttribute { get; set; }
    [Required]
    public int DiplomSeries { get; set; }
    [Required]
    public int DiplomNumber { get; set; }
    [Required]
    public int AttachmentSeries { get; set; }
    [Required]
    public int AttachmentNumber { get; set; }
    [Required]
    public DateTime DecisionDate { get; set; }
    [Required]
    public string Qualification { get; set; }
    [Required]
    public string Specialty { get; set; }
    [Required]
    public string Lifetime { get; set; }
    }

Таблица 2.

    public class Discipline
    {
    [Key]
    public int DisciplineID { get; set; }
    [Required]
    public string DisciplineName { get; set; }
    [Required]
    public int QuantityHours { get; set; }
    [InverseProperty("Discipline")]
    public virtual Student discipline { get; set; }
    [Required]
    public string Rating { get; set; }
    }

Как реализовать копирование строки из главной (таблицы 1) и всех связанных строк из таблицы 2 и остальных? Понимаю что нужно заменить все ключи, но реализации в интернете так и не нашел. (Копировать в те же таблицы, но с другими id)