Sections

Select a text region, then on the Text tab choose Section (tooltip: mark the selected text region as a numbered section header). The button stays pressed while the region is a section.

Mark a header

1. Apply a heading style if you want the look (Heading 1–3).
2. Keep the text region selected.
3. On the Text tab, choose Section.
4. Set Level to 1, 2, or 3 (tooltip: Section level (controls sub-numbering)). The control is disabled until the region is a section.
5. Leave Number blank for automatic numbering (placeholder: auto), or type an override (tooltip: Override the section number (leave blank for automatic)).

Click Section again to unmark. The text stays; the number and the sidebar entry go away.

What sections drive

• The Sections sidebar — click an entry to scroll to that header.
• Calc numbering — [2.3] follows the nearest section above.
• The section table — a clickable contents list, including in the PDF.