Hi Meck,
To have banner as you wish, you don't need to add new position, please follow the instruction:
1. Create a module with content you want to display in the banner, assign to position "sidebar-2" and add class suffix for the module (in the Advanced) tab. Example we add class suffix "banner"
Detail setting:
http://easycaptures.com/fs/uploaded/804/7244795861.png
Add class suffix screenshot:
http://easycaptures.com/fs/uploaded/804/9960074347.png
2. Add style for the class suffix to the custom.css file (templates/t3_bs3_blank/css), if you don't see the file, please create a such file. Here is the sample:
.banner {
border: 2px solid #c00;
position: absolute;
top: 0;
width: 200px;
right: -200px;
padding: 20px;
}
P/S: it does not work in responsive such as mobile. You have to style it for responsive if you want to make it fit all layouts or you can hide it in mobile by using the Bootstrap responsive utilities:
http://getbootstrap.com/css/#responsive-utilities
Check out the result here:
http://easycaptures.com/fs/uploaded/804/7850356045.png
Gardner.