I don't have any project at the moment :(
Here is the situation...
I have a WeekViewDefinition, In the view I should see Sunday through Saturday. Each day can have 2 through 4 resources. In this situation, of course, surely it's not possible to see at the same time everyday and every resources so an horizontal scrollbar appear to let the user scroll according to is needs. In my application, I implemented a logic throught a NavigationBehavior (All arrow keys).
Each appointment object or special slot object contain a border object that I change the color to indicate the new selected object during my navigation operation. If I scroll to the right and I fall outside the visible range, I need to scroll automatically to the right to have my selected object visible.