1. There are several things to change on how the GeoNavigation add on work. I will be more specific at the later stage. In short, the job is to do with sub-domains and the geo-navigation add on to make it impossible to switch between regions, while switching between sub-regions should be still possible by user. 2. It is also connecting banners to sub-regions, that is, making it easier for admin to publish banners on subregions selectively. More details will be available when contacted. Please bid only if you are familiar with geodesissolutions geo navigation add on and have sample/reference of your previous work.