Feodor says: > I need to set "escape" combination to CTRL+TAB.
You can't. TAB is CTRL-I in VT100 mode which most terminals use, so there is no way to modify that further with CTRL. The best you can do is, if possible, have your local terminal emulator intercept CTRL-TAB, send another character, and tell screen about that character. I use iTerm for MacOS, and have configured it to send ✠, a character I would never use otherwise, when I type CTRL-TAB.
