"View>wireless coverage>access points" there is an option to select all, however there aren't any ap's listed."
Sounds like that the APs are not added to the map.
Edit the map (screenshot below) and then in the same pull-down select > Add > APs and select the ones that are on that you'd like to place on this map,
They are places in the middle so drag and drop the icon to the exact location.
Last step is to save the map - select > save in the menu.