Advan data

Dear Dewey Team,
I would like to obtain visitation counts for a set of custom geographies. Is this possible with the Advan mobility data available through Dewey, or are visitation metrics only available for the predefined POIs provided by Advan?

If custom geofencing is supported, I would also be interested in learning what data products are available (e.g., daily visits, unique visitors, visitor origins) and whether there are any requirements regarding the format or number of polygons.