We have "Print Screen", which is a function I don't use that often.
(Not a Mac user, so I'm talking about regular PC keyboards).
In the old days I had a Sun workstation with Copy and Paste keys.
The computer (or OS) might come with one, but commercial software would also include a cardboard strip in the box, along with the manuals.
Many examples: https://www.getrevue.co/profile/shift-happens/issues/as-clos...
edit: Plus thanks for the link! I've not read the article but the pics are great up to the end! So much inventivity on how to upgrade bona fide keyboards with relatively low tech all through computer history!