For WP Estate, you can enable/disable from Theme Options-Google Maps Settings-Enable Geolocation.
For WP Residence, the Geolocation is automatically activated and you can select Geolocation Circle over map (in meters) in Theme Options-Google Maps Settings.
Regarding Geo-Targeting, at this moment we do not have it. Thank you for the link that you provided. We will investigate and see if can be included in the theme.