The Copyediting section of the workflow is probably the most confusing aspect of OMP 1.0 and rest assured we'll be making it more intuitive. Its current operation is documented in http://pkp.sfu.ca/wiki/index.php/OMP_Userguide#Editorial
. The "Copyediting" grid is actually where files go *after* they're copyedited; copyeditors need to be assigned and then notified in the Participants drop-down. This will give *them* the ability to upload files to the Copyediting grid, using the Final Draft files as source material. Once that's one, the Copyediting grid's "assign" tool allows you to request audits from other parties, such as authors, of files that copyeditors have already worked with. Hope that makes sense?
Public Knowledge Project Team