org-agenda-prefix-format and tab stops

[Michael Maurer]

hi,

I've discovered org-agenda-prefix-format, but can't figure out how to
add a tab-stop after every todo-item. So basically that the headlines
are aligned regardless of the character-length of the todo-item. My
current setup looks like this:

(setq org-agenda-prefix-format
  '(
(agenda  . "  %?-12t% s")
    (timeline  . "  % s")
    (todo  . "  %i %-12:c")
    (tags  . " %i %-12:c")
    (search . " %i %-12:c"))

but messing around with the -12 variable doesn't seem to change
anything. Probably missing something.