click Edit, and at the top left of the map on the corner a bar will pop up.
It will have a hand icon, a blue thumbnail icon, and a line-graph looking icon. it will be in the map window at the top left.
Select the blue thumbnail icon it looks like the other ones that are placed on the map. find a spot near where you live- city, street, whatever. place the thumbnail tack thing there and then it will ask you to input stuff, put your user name. then click Done, its where the Edit button was.
I made a picture of it but i cant upload here i guess