How to Create Figure Captions with Two-Level Numbering in Word
Question details
The user needs to insert figure captions with two-level or multi-part numbering (such as Figure 3-5A, 3-5B) and ensure these captions are correctly included in the table of contents or table of figures.

- Product
- Microsoft Word
- Device & OS
- not provided
- Scenario
- Structuring an academic, technical, or professional report that requires multi-part figures tied to specific chapter or section headings.
- Observed behavior
- The user needs to generate complex caption formats like 'Figure 3-5A' and accurately link them to appropriate heading styles so they populate correctly in a Table of Figures, but is struggling because Word typically associates a caption label with only one heading level.
Ensure your document already uses a multi-level list applied to its built-in heading styles (e.g., Heading 1, Heading 2), as Word relies on these formatted headings to generate chapter-based caption numbers.
Link Captions to a Specific Heading Level and Add Suffixes Manually
Since Word only allows linking a specific caption label to a single heading level natively, the most reliable method for multi-part figures (A, B, C) is linking the primary numbers and manually appending the letter.
Word's caption numbering is designed to pull chapter numbers from a single designated heading style per caption label. To achieve formats like 'Figure 3-5A', you base the caption on the heading that provides the '3-5' structure, then manually add the sub-identifiers.
Go to the 'References' tab on the top ribbon and click on 'Insert Caption'.
In the Caption dialog box, click on the 'Numbering' button.
Check the box for 'Include chapter number'. In the 'Chapter starts with style' dropdown, select the heading level that corresponds to your base numbering (e.g., select Heading 2 if you need the '3-5' prefix). Choose a separator like a hyphen and click 'OK'.
After Word generates the base caption (e.g., 'Figure 3-5'), manually type 'A', 'B', or 'C' at the end of the generated text in the document.

Link Captions to a Lower Heading Level for Automatic Letters
If your document uses a third heading level formatted specifically as A, B, and C, you can automate the entire caption without manual typing.
Easily Manage Figure Captions and Numbering with WPS Writer
WPS Office provides a fully featured word processor (WPS Writer) that makes inserting, numbering, and managing complex figure captions straightforward. It offers seamless compatibility with Microsoft Word documents, allowing you to edit .docx files and update your Table of Figures without losing formatting.
- 1. Select your figure: Open your document in WPS Writer and select the image, chart, or figure you want to caption.
- 2. Insert a caption: Navigate to the 'References' tab and click on the 'Caption' button.
- 3. Adjust numbering settings: Click 'Numbering', check 'Include chapter number', select your desired heading level (like Heading 2), choose your separator, and click 'OK'.
- 4. Append custom labels: Click 'OK' to insert the caption, then manually type 'A', 'B', or 'C' after the generated number to complete your two-level numbering.

Frequently Asked Questions
Why is the 'Include chapter number' option grayed out or causing an error?
This happens if you haven't applied a built-in Heading style (like Heading 1 or Heading 2) tied to a multi-level list in your document. You must format your headings with numbered lists before you can link captions to them.
Can I link different caption labels to different heading levels in the same document?
Yes. While a single label (e.g., 'Figure') can only be linked to one heading level at a time, you can create a new custom label (e.g., 'Figure-Sub') and link it to a different heading level, such as Heading 3.
How do I ensure the manually added letters (A, B, C) appear in the Table of Figures?
As long as the manual letters are typed on the same line as the automatically generated number and are formatted with the same 'Caption' paragraph style, Word will automatically include them when you generate or update the Table of Figures.




