Sets or returns a Section.BreakType object that represents the type of break (before) this section. There are 5 types of breaks: Continuous, Column, Page, EvenPage, and OddPage.

public BreakType Break{ get; set; }
Public Property Break() As BreakType

MS Word equivalent: File menu > Page Setup... > Layout tab > Section section > Section start:

          //--- Return Break
          Section.BreakType oBreak = oSection.Break;

          //--- Set BreakType
          oSection.Break = Section.BreakType.Column;
          '--- Return Break
          Dim oBreakType As Section.BreakType = oSection.Break

          '--- Set BreakType
          oSection.Break = Section.BreakType.Column