[O] Agenda view column mode: How to a column showing just today's time?

[Brian Wood]

Hi,

I'm experimenting with column view of a daily agenda and effort estimates.  I'm using this in my .emacs:

;; Effort Estimates
(setq org-global-properties
              '(("Effort_ALL". "0 0:15 0:30 0:45 1:00 2:00 3:00 4:00 6:00 8:00")))

;; Column view for effort estimates
(setq org-columns-default-format "%80ITEM(Task) %2PRIORITY %TAGS %10Effort(Effort){:} %10CLOCKSUM")

I'd like to replace CLOCKSUM with a column that shows me just the time spent on the task *today* (not all the time ever spent on the task). I've read about CLOCK_MODELINE_TOTAL: today, but I'm not sure how to apply that.  

Screen shot of what I've got now:



Thanks for any pointers!

-- 
Brian Wood
Applications Programmer
UC Berkeley IST Application Services