I see that it is possible to include several layers of data on one map. But I do not understand how to do this. When I go back in to try to add another layer of data the map simply looses the data that was in and changes to the new data. I cannot get them both to stay on the map. I am trying to map wages (shaded area)and also my own set of demographic data -population (shaded circles). But I cannot get the sets to stay on the same map. It just flips from one set of data to the other.
I am a new user and am very frustrated that I cannot find an answer. It seems like a basic function. I do see that I can add a secondary layer using the mapPoint demographics but that data is too old and I want to use my own.
Secondarily, is there any way that I can go in and update their demographics and add my own?