I have a database with coordinates (latitude and longitude, for example [-45,27064309, -19,7832029]) and I need to show them as dots over the brazilian map. I also need to show some information about the dots when I'm over the dots with the mouse. I would like also to use a GeoJSON file to show the different states and regions of Brazil and maybe a consolidate information on this. I have already tried to use several JSON files on Knowage, but it seems that the files are not in the correct pattern. Can you help me with this?