Bullets and Numbering of paragraphs is supported only in Writer, Impress and Draw.
For the current paragraph or selected paragraphs you can switch off the automatic numbering or listing. Click the No List icon in the Formatting bar. The list indenting is also removed.
No List icon
If the cursor is located within a numbered or bulleted list, you can turn off automatic numbers or bullets for the current paragraph or selected paragraphs by clicking the Toggle Unordered List icon on the Text Formatting bar.
Toggle Unordered List icon
To remove a number or bullet from a paragraph while preserving the list indenting:
Place the cursor at the beginning of a paragraph in a list and press the Backspace key.
The numbering of the paragraph disappears and is removed from the numbering sequence. Numbering resumes in the following paragraph.
Press Shift+Backspace at the beginning of a list paragraph to return the number or bullet.
Press the Enter key in an empty numbered paragraph to stop the numbering.