As far as I know, none of the copy editors writes part time or on a freelance basis. Marilyn Iturri, news editor for copy editing. Cheryl Imelda Smith is assistant managing editor for editing and production, but her background is in reporting. There are three copy chiefs who function as assistant news editors. Most copy editors fall into the range of late 30s to mid-50s.
Stays vary so much that it's hard to say.
Editors tell me that turnovers take place every few months. Those remaining have served an average of five years. Atex for editing. The Register has full pagination capacity, but we use a combination of Atex and Macintosh. Pages are still composed.