Hi Henri,

You should be able to achieve those things by manipulating the modules in the respective position.

To know what position is being used, enable the preview module positions in Joomla's template options(http://take.ms/YNXJD, http://take.ms/v72PE).

Once you know the position, this is how you can achieve the following:

"removing the right block and stay on 2-columns" - unpublish all modules in that position or assign them to another position

"replacing the right block by a many others right blocks: last Groups + last Articles + etc" - publish and assign those other modules in that position

Hi Ray,

I enabled the preview module positions in Joomla's template options but I can not see the position (as shown in your screenshot) when I am back to my front-end.
No change.

Hey Henri,

I tried this on your site and it seems to be working(http://take.ms/7wo08). Did you include the ?tp=1 at the end of the url to enable the template preview mode?

oh I see the position now !

but back to your answer: "unpublish all modules in that position or assign them to another position"

where can I assign position to modules?

Hey Henri,

where can I assign position to modules?

You can assign module positions in the module itself(http://take.ms/vourS).

Remember that if you do not see a position in the list, you may type it in and press enter.

Done !

Thanks Ray

You're most welcome Henri.

Regards.