MVC2 Model design related question?

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C#

C#4.0

MVC

Hi all:

I am working in asp.net MVC2 application and I have question related to design of model. I have an edmx file which has all the entities. I have a viewmodel named whiteoutviewmodel which uses Three list of entities and three other collections like this:
&

public class WhiteoutViewModel { public List Servers { get; set; }
public List Whiteouts { get; set; } public List Fields { get; set; }

    public ArrayList Hours {get;set;}
    public ArrayList Minutes {get;set;}
    public ArrayList AMPM {get;set;}
    public ArrayList RepeatList{get;set;}
}
I have created a view based on this Viewmodel. Now I need a partial view which should be of type Whiteouts . I have created a whiteout class and added some properties in it.

  public class WhiteoutDTO
    {
        public int WhiteoutId { get; set; }
        public int FieldId { get; set; }

        public int StartHour { get; set; }
        public int StartMinute { get; set; }
        public string StartTime { get; set; }

        public int EndHour { get; set; }
        public int EndMinute { get; set; }
        public string EndTime { get; set; }

        public string Repeats { get; set; }
        public bool IsActive { get; set; }

        public enmDays Days { get; set; }
    }

Now I have two Whiteout class. One is from edmx and one that I created. Do I need to make my partial view of type edmx or the one I created ? The reason I created my class is that I needed some properties which are not in database table/edmx whiteout. Should I make my whiteout class as property of above ViewModel?

Please suggest.