Binding Shift-keys?

[Miguel Farah F.]

I find the <Esc><Tab> key combination for the previous-new command
quite awkward, and I'd rather remap it to Shift-Tab. However, I can't
find a way to define this key combination. What am I missing?

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MIGUEL FARAH              //   [EMAIL PROTECTED]
#include <disclaimer.h>   //   http://www.nn.cl/~miguel
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