Hi,
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The requirements there are such that you need to select a location from the drop-down list, and if you just write text and select nothing, the hidden fields will not be filled with coordinates.
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Unfortunately, the radius-based search cannot be disabled now, search by region, is an additional function for the radius-based search. If you use Google maps, try to enable hide the exact address in HivePress > Settings > Geolocation, maybe this will help you.