Changing file name with File Template

With a file template, is it possible to change the file name?

I am trying to create a template for my migration files. I can get the template the way I need with the variables, but I would like to customize the name of the file generated.

For example, instead of the file name Test.cs, I would like it to be 20140330153423_Test.cs. Basically just appending a timestamp to the file.

My current template looks like:

namespace $NAMESPACE$
{
    using FluentMigrator;
     
     [Migration($NUMBER$)]
     public class $NAME$ : Migration
     {
          public override void Up()
          {
               $END$
          }
          
          public override void Down()
          {
          }
     }
}

Where the macros are: