I'd like to make a request for something I used ALL the time in Macromedia FreeHand: the Find & Replace Graphics panel.
It is one of the most time saving and amazing things even put into graphics software and I miss it greatly. Adobe still has a page up with some very old looking screenshots of it from Mac OS 9: https://www.adobe.com/support/freehand/programs/creating_animations/creating_animations03.html
You could basically find anything in your document and replace it with something completely different. Colors, strokes, stroke widths, symbols, overprint attributes. The list goes on. It was an amazing boon to productivity when dealing with very detailed illustrations or many-page documents.
