You set numbering for the following items.

You cannot apply numbering to front matter and back matter chapters. However, you can apply numbering to appendix chapters.

Setting Numbering in a Theme

You set numbering in the <Style | Theme> menu.

The <Theme> menu is visible only to users who have the “Create Style” permission.

Go to the <Style | Theme> menu.
In the theme list, select the theme to set numbering for.
Select the item to set numbering for(heading, code caption, ordered list, and so on).

Numbering menu

Select a 1subitem(Heading 2), click the “Numbering” tab, and then set the options.
Click the button.

Numbering Options

The numbering options are as follows.

For part, chapter, and appendix titles, you set only the Number Format and Number Style.

For footnotes, you set only the Number Format.

For numbering of Ordered List 1/2/3 and Unordered List 1/2/3 in web themes, you set only the Number Style.

Select a number style from the following.

In the number format, enter a string that contains keywords, as follows.

Part ${part_n}.
${n}.
Appendix ${n}.
${chapter_n}.${h1_n}

For example, if the number style for part titles is “UPPER_ROMAN” and the number format is “Part ${part_n}.”, the numbering result is as follows.

Part I. Creating Documents
Part II. Editor
Part III. Creating Styles

If you change the number style to “UPPER_ALPHA”, the numbering result is as follows.

Part A. Creating Documents
Part B. Editor
Part C. Creating Styles

You can use the following keywords in the number format.

“${n}” means the number of the current item. Therefore, for part titles, setting “${part_n}” and setting “${n}” give the same result.

To number Heading 1 through Heading 5 hierarchically, set them as follows.

Use the Text Indent option to set the space between the number and the heading.

Position is an option you can set only in PDF themes, and you set it to "Inside" or "Outside". The results show clearly what the option is for.

If you select “Inside” for the position, the result is as follows.

If you select “Outside” for the position, the result is as follows. The heading number hangs to the left.

When you set the position to “Outside”, you must set enough margins in the PDF page layout.

You can set the font, font size, font color, font style, and other options for numbers differently from the body text.

Example of numbering font options

If you set the font size to 1em, the number is the same size as the body text.