Can I create a "bundle of bundles"?

[Goldenchest]

I understand that it's possible to treat a group of tags as a single unit with the multi-tag bundle feature, where the entire set of tags has one defined center point.

I would like to expand this concept of a multi-tag bundle and create a multi-bundle bundle. In other words, treating the entire multi-bundle setup as a single unit, with one defined center point. Is it possible to do so using something similar to the createMarker tool? Or will I have to manually create an XML file containing each individual marker in each bundle?