Here is a diagram of the editorial process
to help visualize what I am laying out below...
After an article is accepted in Submission Review it goes to Submission Editing (which includes copyediting, layout, proofing), and is then sent to Scheduling Queue, where an editor or the editors assign each article that is ready to the appropriate issue. You could have the editorial team review the assignment of articles to issues and make suggestions. Once assigned the article goes to a table of contents where it can be ordered within the issue. This too can be reviewed by the editorial team, and articles shuffled among forthcoming issues, all prior to publishing the issue.
We can create additional editorial management options for the next version of OJS, but I want to understand the needs very clearly,