screen: Colon
4.3 Colon
=========
Customization can also be done online, with this command:
-- Command: colon
('C-a :')
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 'set' keyword no longer
exists, as of version 3.3. Change default settings with commands
starting with 'def'. You might think of this as the 'ex' command
mode of 'screen', with 'copy' as its 'vi' command mode (Copy
and Paste).