Numbered Headings uses page properties to enable and configure numbering without the macro. This type of numbering is based on the page numbering functionality.
You can set the page property nl_avisi_nh to enable numbering on a page. This should be the value:
{ "isEnabled": "true" }
Numbered Headings caches these page properties for performance reasons. Set these properties only if you know what you are doing. It might for example work at page creation but updates might only be visible after cache eviction time.
A better alternative is to use the API to set the numbering properties.
If you do not want to use the default numbering, you can use the page property to configure the numbering format:
{
"isEnabled" : "true",
"overrideSpaceNumbering" : "false",
"numberFormatField" : "",
"startingNumberField" : "",
"startingHeadingField" : "",
"skipHeadingField" : "",
"customFormatFieldH1" : "",
"customFormatFieldH2" : "",
"customFormatFieldH3" : "",
"customFormatFieldH4" : "",
"customFormatFieldH5" : "",
"customFormatFieldH6" : ""
}