Follow these steps:

1. With your document open, double-click on the text you wish to format
2. Click the "Apply formatting" icon
3. Click the icon for the heading type you'd like to apply: "Title"
4. Click the icon for the heading type you'd like to apply: "Unnumbered heading"
5. Click the icon for the heading type you'd like to apply: "Numbered heading"
6. Click the icon for the heading type you'd like to apply: "Appendix heading"
7. Select the heading level you require (the font size is already shown)
8. Your text will automatically be updated

Tips:

• You can edit the style guide wizard while writing if you require any changing

See also:

• Applying caption formatting
• Applying paragraph formatting
• Applying list formatting
• Editing the style guide wizard