The class mod_assignment_grading_form to be modified to support grading form embedding.
TinyMCE editor in assignment feedback does not display file picker
I think assignment is advanced method of interaction with students. Thus text-only feedback for assignment is primitivization of interaction process.
I'll explain a bit my comment.
My comment is related to Dan Poltawski comment: http://tracker.moodle.org/browse/MDL-27520?focusedCommentId=127953&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-127953
Artem, I can see your point. However it is IMHO out of this project's scope. Advanced grading methods are basically to bring complex grading forms like rubrics into Moodle.
Probably I misunderstood something. I thought that in this task standard Moodle 2.1 assignment grading form will be replaced by newly developed gradebook form. Am I wrong?
Yup, that's another project and will not happen in 2.2
Thanks, sorry for inconvinience.