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  "In X10, "cut buffers" were introduced."

- (WTF) What the X10 is? (hyperlink should be added) MentalMutant (talk) 15:50, 20 December 2015 (UTC)

See e.g. wikipedia:X Window System#Origin and early development (unfortunately does not mention "cut buffers", so can't be used as a reference). -- Lahwaacz (talk) 16:01, 20 December 2015 (UTC)
As of this writing, there is wikipedia:X_Window_selection#Cut_buffers. It does not mention X10, as far as I can tell. Regid (talk) 23:21, 24 October 2022 (UTC)

In some cases?

Used for the currently selected text, even if it is not explicitly copied, and for middle-mouse-click pasting. In some cases, pasting is also possible with a keyboard shortcut.

- What is "some"? Can someone please give some pointers or some examples, it felt too vague, I think we should either remove that statement or give some explanation rather than leaving it hanging. Pickfire (talk) 15:12, 31 July 2020 (UTC)

"In some cases" means the same thing as "not in all cases". It does not work simply if the program (or the used GUI toolkit) does not have a shortcut for it. There is nothing as standard as Ctrl+C (see Keyboard shortcuts for details) so I guess the sentence will always seem vague. -- Lahwaacz (talk) 15:41, 31 July 2020 (UTC)
I can middle-mouse-click, or press my keyboard shift+insert, to paste in xterm. I only need to select the text to paste in the other applications. No need to explicitly copy it. In contrast, with firefox, only middle-mouse-click succeed to paste passwords. Regid (talk) 23:33, 24 October 2022 (UTC)