http://www.morishima.net/~naoto/software/elscreen/
入れてみた．
キーバインド
C-z ElScreen prefix key
C-z C-c Create new screen
C-z k Kill the current screen
C-z C-p Switch to the previous screen
C-z C-n Switch to the next screen
C-z C-a Toggle screens
C-z g Jump to the specified screen
C-z [0-9] Jump to the screen #
C-z ? Show help
C-z C-f Find file in new screen
C-z w Show list of screens
C-z m Show last message
C-z t Show time
C-z A Name the current screen
C-z v Show ElScreen version