[Plugin: Basic Google Maps Placemarks] placemark with 2 marks on the same place

hi, a great tool – thank you very much!
I have only one problem – i want to show shops in a street and sometimes are 2 shops in the same house with the same adress 🙁 so the plugin dont show that marker. Did anyone know what i can do?

http://ww.wp.xz.cn/extend/plugins/basic-google-maps-placemarks/