A way to insert X11's "clipboard" buffer (i.e text that is currently selected text).
I agree with GP: I find the two separate copy-paste methods very useful and wouldn't want to see them merged. Users who aren't aware of one of the aren't affected, and those who are get an extra buffer to use.
Not to mention that these back doors can be easily disabled, e.g intels high assurance mode, but normal "owners" are specifically not allowed to disable them.
I agree with GP: I find the two separate copy-paste methods very useful and wouldn't want to see them merged. Users who aren't aware of one of the aren't affected, and those who are get an extra buffer to use.