I would like to change the escape sequences used by some keys in my terminal. My goal is to define custom mappings in Vim (terminal version).

In the following I use shift-space as an example, but I would prefer if the proposed solution could be generic.

My current terminal (gnome-terminal) uses a simple space as escape sequence for shift-space, as can be seen by typing ctrl-v shift-space. A quick check with the true xterm shows the same behavior. I would like that the shift-space key combo generates another escape sequence (e.g., the one of shift-F30, which I would never use otherwise).

So, how would I go about doing that? And is it really a good idea? Let me know if there are better alternatives...

Note: I'm aware that this is only part of the problem: after the terminal sends a proper escape sequence for my keys, I still need to teach Vim what it means. But I think I know how to deal with that.