Displaying day-resources (or a secondary time-line)

["Sven Bretfeld" <sven.bretfeld@gmx.ch>]

Hi all

I'm looking for a way to display "dates" in the Agenda View which are
not appointments but, in GTD-speak, belong to the "availability of
resources".

That's a little too abstract. A concrete example. Say, your secretary is
on duty only Mondays and Wednesdays from 8:00 to 12:00 and Fridays from
8:00 to 10:00. This is a resource that enables or disables you to do
certain things. So you want to see these dates in your Day Agenda View,
but not mixed with your own appointments. You'd rather have this
information at the end of the Day Agenda, maybe in a different color
and/or separated by a line, like this:

Montag     10 Mai 2010 W19
  Office:          10:00-12:00 Meeting with the Boss
  Lunch:           12:00-13:00 Meet Jens in the Pub
  Teaching:        14:00-16:00 Lecture
  Project_X:       16:00-18:00 Preparation Meeting
  Leisure:         20:15       Cinema
  ------------------------------------- /from here in a different color/
  Office:          8:00-12:00  Secretary is present
  Family:          14:00-20:00 Mary will not be at home
  On_Holiday:      Ina

The last entry, which says that Ina is on holiday today, can principally
be solved as:

** Holidays
   :PROPERTIES:
   :CATEGORY: On_Holiday
   :END:
%%(diary-block 05 05 2010 14 05 2010) Ina

But the other entries can not be done like this, I guess. These contain
certain times of the day, and the first one (secretary) is thought to be
a _repeating_ date.

How is that possible with Orgmode? Any ideas?

Thanks,

Sven