xterm select text with keyboard that is anywhere in window

Question

Is there a way to select and copy text anywhere in terminal(xterm) window(that is, not only current shell line, but also output from previous commands) using only keyboard?

Answer 1

tmux and screen (shell multiplexers) both have a copy-mode, which you can enter via keyboard, move around the cursor via keys .. and select text via the cursor. naturally, you can scroll back in the output buffer.

i don't know a pure xterm-solution, maybe something like gnome-terminal etc will do it (allthough i doubt it, they are even more fancy than xterm :))