If the keys and functionality don't work exactly as GNU Screen does then this won't help me. The behavior and keystrokes are so far burned into my brain that i

If the keys and functionality don't work exactly as GNU Screen does then this won't help me. The behavior and keystrokes are so far burned into my brain that it doesn't make sense at this point to learn a new tool unless/until every system I use under the sun doesn't support GNU Screen anymore.