Making C-t act like C-x sometimes

[Deniz Dogan]

Hi

I'm struggling trying to make my C-t act like the C-x prefix in all
cases but C-t C-n (C-x C-n is set-goal-column).

(global-unset-key (kbd "C-t"))
(global-set-key (kbd "C-t") ctl-x-map)
(global-set-key (kbd "C-t C-n") nil)
(global-set-key (kbd "C-x C-n") 'set-goal-column)

This does not work. Both C-t C-n and C-x C-n are now bound to
set-goal-column. It seems that I can only have C-t C-n AND C-x C-n,
not only C-x C-n.

Any ideas?

Thanks,
Deniz Dogan