Oh,ok..sorry then. I thought that Secondary sidebar shifts below the primary,when I use the layout with the sidebar on one side.
I want to use primary Sidebar for widgets that I display e.g. on nearly all pages and secondary sidebar for widgets that differs according to the website section. In this case I could only have one primary sidebar with a set of widgets that are same for all pages (and widgets’ content on one place) and custom secondary sidebars with different widgets.
If I do what you suggest, I would have to put the widgets that are same for all the pages into each of my custom sidebar , adding to it the widgets that are different for sections. So instead of managing the content of the widgets that are same for all the pages in one sidebar, i ll have to manage the content of e.g. 2 same widgets across all these custom sidebars (e.g. I have 4 custom sidebars for 4 different sections of the web). Editing the same content of the widget 4 times in each of these sidebars.