org-mode with a custom binding on S-Up and no shift-select

[Alain Ketterlin <alain@dpt-info.u-strasbg.fr>]

Hello,

I've just started using org-mode and have a small problem with <S-up>
and <S-down>. I don't use shift-select-mode. My .emacs has:

(global-set-key (kbd "S-<down>") `(lambda ()
                                    (interactive)
                                    (scroll-up 1)))

and similar for <S-up>. (BTW, is interactive of any use here? I copied
this somewhere, my elisp skills are almost non-existent.)

Org-mode has special use for <S-up> and <S-down>. I would like to keep
my own bindings, except on timestamps. I have customized
org-support-shift-select, with the hope that org-mode would revert to
default behavior, but it does not. Instead, it seems that it tries to
emulate shift-select-mode.

Is there any way to keep my own bindings? If not, is there any way to
have org-mode's on timestamps, scroll-up by 1 otherwise?

Thanks in advance for any help.

-- Alain.