> For the complete documentation index, see [llms.txt](https://wpdocs.gitbook.io/triply/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wpdocs.gitbook.io/triply/ba-booking/add-booking-object/9.-related-items.md).

# 9. Related items

![](/files/-MPDeCSgtosBgzAAe2d6)