Please check the address of the entries and if the entries are geolocated using MyJoom Geocode Factory or by using the Sigsiu’s SobiPro field called ‘Geomap”.
It’s possible to add a custom field in the module ?
No, this is not possible.
Can I show entries from a specific category only?
No, the module will select entries from any single Sobi Pro section including all categories which belonging to its. In future versions you will be able to select from multiple sections.