Thanks Bernt, that works!
However the only thing is that I've defined COLUMNS for the whole file using the #+COLUMNS keyword at the top of the file. I guess those properties are not being considered in the column view on the agenda buffer. It comes up with the default column properties.... I guess the only way is to redefine the standard column properties, so that the column properties that I want are displayed in the agenda view as well...

thanks,
Jose

Bernt Hansen wrote:

Jose Robins <wulfhomme13-rook@yahoo.com> writes:

Let's say I have a org tree with some tasks tagged with the keyword ":today:".
Now I do a sparse tree matching the today tag and this would limit the display
to only items with tag "today".


Tag your tasks with :today: then do an agenda view tag match for today

C-c a 1 m today RET

Tag inheritance will control if subtasks are included or not.

Now if I would like to do a column view on that sparse tree by doing C-c C-x
C-c. However this does not seem to limit the column display to only the
headlines with the tag "today".  Is it possible to achieve what I'm trying to
do? Is there any way to filter out (i.e hide) headlines in the column view
based on some criteria?


Then C-c C-x C-c in the agenda view

HTH,
Bernt