I use column editing in cua-mode (cua-selection-mode) a lot. A main issue I have is that the most frequently used keybinding, C-RET (Control + Return), doesn't work in most terminals (Ubuntu 16.04, Emacs 24.5), or with emacs -nw.
I did some research and found that this is a nasty problem as C-RET is often neglected by terminals and emacs does not receive it at all in non-GUI modes.
As a work-around, how can I rebind the functions of C-RET in cua mode to another key, e.g. C-^, that is not lost along the way?
(I searched around here and only found questions about how to Unbind C-RET in emacs?)
Also, is it possible to rebind in a way that allow both the original key C-RET and the new key C-^ to work?