It would be nice if you could have a pop-up appear when there are comments for segments. The pop-up would appear when the new editor is opened for a job (translation task or revision task). It might say something like, "There are comments in this document (job?) from [the translator]. Would you like to see them?" If you select "Yes", all the comments would be shown to the right.
Show pop-up about presence of comments on new editor opening