I had submitted a manuscript to a journal. After a while, they requested major revisions. The end of their request, they mentioned that:
"You will be unable to make your revisions on the originally submitted version of your manuscript. Instead, revise your manuscript using a word processing program and save it on your computer."
It is a bit confusing for me. I do not know exactly what they mean. Can I turn on Track Changes in Microsoft Word to remain changes in my document?