There are a few properties of the child page site map that can be controlled from the theme.skin file in the skin folder.

To use these settings you must first add this near the top of the theme.skin file if it does not exist already:

<%@ Register TagPrefix="portal" TagName="ChildPagesSiteMap" Src="~/Controls/ChildPageMenu.ascx" %>

Shown below are the available properties with their default values:

<portal:ChildPagesSiteMap runat="server"
	MaxRenderDepth="0"
	HidePagesNotInSiteMap="false"
	HonorSiteMapExpandSettings="false"
/>