Clipboard Manager - difference between "Standard" vs "Just Copy"?

I’ve tried to look through what documentation I could find (e.g. Clipboard Manager · GitBook), Google searching, done some experimenting myself, and I still cannot figure out what the functional difference is between the “Standard” vs “Just Copy” buttons in the clipboard manager. Anyone able to enlighten me?

Thank you!

standard will do the same as cmd+v for that item, just copy will just put it into your current clipboard but not paste it