is there a way to specify to the system an area covered by a store for instance if the store (in our case office) is in one area but also offers their services in other areas e.g. one of our offices is in welwyn garden city but they cover st.albans so if someone puts in st.albans as their address and searches within 5 miles they wont show up.
Have you tried using the tag option – I think it comes with the pro pack. The catch is to make sure you have the right radius setting. For example, if you have the default set for 3o miles to ensure it shows stores in New York but choose a tag dropdown to show specific group of stores that are in NY, LA, etc. then it will not show the entire list as it is only looking for within 30 mile radius.
If you just want to show all of US all the time without zooming in too much, then you can set the radius to 1000 miles (etc.) and it will show all stores in the east or west or cluster of stores based on certain tags.