In Emacs, I can press Ctrl-h, k, to describe a key. I can get the key name even it's undefined, e.g.,
C-x <C-M-end> is undefined
Thus, I got to know the key name is
But how can you get the key name for Vim?
I want to setup a keymap for Ctrl-Shift-V and Shift-Insert, but what the code shall I have to use?
Is it possible to get the key name on the fly?