Let's say I create a custom page layout in SPD. Instead of adding a web part zone I add a web part (let's say content query web part) in the layout. When I go to a page using that layout I can see the web part but if I go site actions -> edit page I can't change the properties of the web part.
What I would like to do is to add a content query web part at a certain place in a layout and then let the users be able to edit the web part through the UI and for example change which list the web part should get the data from.
If I only add a web part zone and 20 pages needs to be created then the user has to add the web part 20 times and select list 20 times etc.
Is what I try to achieve possible without writing custom web parts with custom properties?
Thanks in advance.
Edit: I can see that there is a property called BrowserDesignMode set to false but I can't change it to true.