How to assign properties to the default ‘Content’ tab with PageTypeBuilder

The “Content” tab is actually named Information, not “Content”. Just see for yourself at /CMS/Admin/Tabs.aspx (Admin Mode -> General Settings -> Page Type -> Edit Tabs).

Under follows a definition of the Information tab (also called the Content tab)

public class InformationTab : Tab
{
  public override string Name
  {
      get { return "Information"; }
  }

  public override AccessLevel RequiredAccess
  {
      get { return AccessLevel.Read; }
  }

  public override int SortIndex
  {
      get { return 0; }
  }
}