Every programmer's editor and IDE I've used in the past 22 years has had this feature, all the way back to Delphi in 1996. I don't think Turbo Pascal's text UI

Every programmer's editor and IDE I've used in the past 22 years has had this feature, all the way back to Delphi in 1996. I don't think Turbo Pascal's text UI had the feature but wouldn't be surprised if it did. Support varies in whether e.g. lines introduced above the view cause scrolling, or if the views are sticky to relative position, but the basics of multiple editing cursors in multiple views for a single buffer have been pretty pervasive.