Outline numbering separator

I want my level1 heading as:

CHAPTER 1


INTRODUCTION

How to use newline as separator in outline numbering?

Hi

Start typing your title with Shift+Enter as in the Title2Lines.odt attached.

In this example:

  • CHAPTER is introduced by Tools Outline Numbering, Numbering tab: Before
  • Paragraph style Heading 1 is modified:
  • Indents & Spacing: 0 (before / after / first line)
  • Line Spacing: Double