[Rd] use Ctrl-W to close View() window?

[Ben Bolker]

   I might be the last person in the world who's using View() outside of 
RStudio, but does anyone have a sense of how hard it would be to enable 
closing such a window (when in focus) with a standard keyboard shortcut 
(e.g. Ctrl-W on Linux) ... ?  Where would I start looking in the code base?

   Or maybe this can already be enabled somehow?

   cheers

    Ben Bolker