We are handling huge STM Books and Journals and following XML workflow. Some of our books and journals will have huge footnotes with contents coded with client provided DTD. When applying the XML tagging to footnote contents, InDesign showing a warning that it's not allowed (attached the screenshot for reference)

Due to this limitation, we're handling the XML based footnotes with different approach and unable to utilize the benefits of usual footnotes features, which includes footnotes moving to next page when the footnote references are moving, flowing the part of footnotes into next page(s) when the contents are exceeding the pages, etc.

Please start enhancing the footnote features by allowing the XML structure as well to the contents, will benefit us and across globe to handle InDesign smoothly