Import filter:
==============
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 (Done?)
Footnotes/Endnotes
Images (Done?)
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:
==============
Paragraph direction
Paragraph bullets/counters
Footnotes/Endnotes
Text boxes (framesets)
Annotations (aka "note")
Anchors
Mail merge
"Sections" (e.g. table of contents)
Table styles, frame styles
Bookmarks
Embedded objects
Spellcheck settings?
Cursor position, etc.
(probably more...)