Import filter:
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Paragraph direction (http://web4.w3.org/TR/xsl/sliceA.html#writing-mode-add, fo:writing-mode (lr-tb|rl-tb|tb-rl|tb-lr|lr|rl|tb|page) "lr-tb")
Paragraph bullets/counters
Fields/Variables
Footnotes/Endnotes
Images
Text boxes (framesets)
Annotations (aka "note")
Anchors
Links
Mail merge
"Sections" (e.g. table of contents)
Table styles, frame styles
Bookmarks
Embedded objects
Spellcheck settings?
Cursor position, etc.

Export filter:
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[TODO list to be written]
