[ESS] disable _ to <- hot key

[Ron Burns]

Perhaps this has been answered but I don't seem to able to set up a 
search for _ and <- that returns anything useful.

I would like to disable the hotkey _ (i.e underscore: shift key with 
-/_) that inserts a <- and/or a hint how to efficiently type names with 
an embedded underscore character (e.g xxx_yy).

Thanks for any help

Ron Burns

-- 
R. R. Burns
Oceanside, CA