HOWTO: build a map

Hi,

I am trying to build a map following the instructions below:
point 1, 2, 3 are OK.
I have a problem with point 4.
I have created a new view, view type "google maps view".
But I do not see any "overlay fields to the view" in my add field as asked below: node link marker, node teaser marker, field list marker, content marker.
For this reason I get the following error:
"Google Maps Views requires at least one overlay handler field."

Please, can someone help me to understand what I am doing wrong.

Thanks

HOWTO: build a map?
1. create a map config
2. add a coordinate enabled gmaps field to a node type (all except plain address)
3. submit content of this type
4. create a "Google Maps View" styles view, add one of the map overlay fields to the view (one of: node link marker, node teaser marker, field list marker, content marker)