click on the tack,, you can enter the lat and lon. and name the waypoints,, if you explore you can change the markers to seperate waypoints, certain one for camps, or wallows, or whatever you have on the gps.
not all areas are aeiral photos yet,, give it time, and also keep updateing the google earth,, took about 4 months from the time they launched it to get aeiral photos in my area, actually it split a mountain in the area i hunt half was colored map, and half was aeiral photo,, kind of drove me nuts.
also on the left side of the main screen you can click different things to show up on the map, water roads parks all different kinds of things.