How do I make SHIFT+Backspace into back tab in my Vimrc?

In V开发者_运维百科imrc...

I want shift+backspace to go back 1 tab. (opposite of tab)

I think you can achieve "one tab backwards" with plain backspace with:

set backspace=indent,eol,start

Anyway if this did not work, you can use <c-d> (that's Ctrl + D) or mapping any key to this. I use Shift + Tab in insert mode:

inoremap <s-tab> <c-d>