Customization can also be done online, with this command:
Allows you to enter .screenrc command lines. Useful for on-the-fly modification of key bindings, specific window creation and changing settings. Note that the
setkeyword no longer exists, as of version 3.3. Change default settings with commands starting with ‘def’. You might think of this as the
excommand mode of
vicommand mode (see Copy and Paste).