Thank You very much for the answer.
University of Kragujevac
Faculty of Technical Sciences Čačak
P.S. I hope that in the future OJS will be based on modules which can be arranged without need to change the code, like in some CMS - for instance, one journal (Kragujevac journal of Mathematics) made some major changes to the OJS so that authors can choose section editors (sections are fields, like analysis, algebra, etc. in Mathematics) upon submission, which is similar to Editor choosing section editors.
If choosing a section editor would be a module, Administrator could put it anywhere where needed, depending on the journal, so developers would be free of providing such features upon requests.