Copy only the template part you need into the child theme, keeping the same relative path. Do not edit havena-pro parent files.
Single-property parts
template-parts/property/shell— Defaulttemplate-parts/property/layouts/moderntemplate-parts/property/layouts/luxury
Preferred extension points
havena_pro_header_variant— filter the active header keyhavena_pro_register_layouts— register another layout id that points at a known template
Unknown layout IDs fail registration. Listing queries stay in Havenlytics Free.
Related: Child theme development, Presentation hooks.