Hi Andrea,

Here I can help some :).

What I have done in the past is take advantage of the fact that org-mode
will close a beamer =columns= environment if the column width is set to 0
(or 1):

------------------------------------------------------------------------------------------
** What is a Type I X-ray
Burst?

*** ignore
:BMCOL:B_ignoreheading:

:PROPERTIES:
     :BEAMER_col:
0.33
     :BEAMER_env:
ignoreheading
     :BEAMER_envargs:
C[t]

:END:
- Low Mass X-ray
Binaries
*** ignore
:BMCOL:B_ignoreheading:

:PROPERTIES:
     :BEAMER_col:
0.3
     :BEAMER_env:
ignoreheading

:END:
- Accretion of H and/or
He
*** ignore
:BMCOL:B_ignoreheading:

:PROPERTIES:
     :BEAMER_col:
0.4
     :BEAMER_env:
ignoreheading

:END:
- Ignition at base of accreted
layer
*** close columns
:BMCOL:B_ignoreheading:

:PROPERTIES:
    :BEAMER_col:
0
    :BEAMER_env:
ignoreheading

:END:
*** data
:B_ignoreheading:BMCOL:


:PROPERTIES:

     :BEAMER_env:
ignoreheading

     :BEAMER_envargs:
C[T]

     :BEAMER_col:
0.4


:END:

whatever else I want
------------------------------------------------------------------------------------------

This creates a "row" on the top of the frame that has 3 columns of widths
0.33, 0.3, and 0.4.  Then to close that "row" I made the =close columns=
header with a column width of 0.  The next header, =data= starts another
"row" and its column width is set to 0.4 giving room for another column to
its right if I so choose.

HTH,

Chris

On Thu, Jan 20, 2011 at 10:36 AM, Andrea Crotti
<andrea.crotti.0@gmail.com>wrote:

> chris.m.malone@gmail.com writes:
>
> > Hi Andrea,
> >
> > I stand corrected - you are getting a lot of useful information here! :-)
> >
>
> Yes true :)
> Thanks everyone, the "per frame" setting is perfect.
> And since I'm here another thing I'm not getting.
>
> If I want to have a situation like this below
>
> +----------------------+---------------------+
> |                      |                     |
> |                      |                     |
> |                      |                     |
> |                      |                     |
> |                      |                     |
> |                      |                     |
> +----------------------+---------------------+
> |                                            |
> |                                            |
> |                                            |
> |                                            |
> |                                            |
> +--------------------------------------------+
>
>
> with two columns on top and then text, how do I achive this with
> org-beamer?
> I don't understand how to "quit" from the last environment use staying
> in the same frame...
>
>
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