[GeoNetwork-users] query a specific tag value tag among all metadata in Geonetwork and get the correspondent list

Hi all,
Could you please help me indicating the best way to look for a specific tag among one of the generic .xml metadata saved in my Geonetwork catalogue v4.3.1 and then get the list of those metadata satisfying the query??

For example if I have to look for the all the metadata having gmd:westBoundLongitude tag value equal to a certain value (as well as, greater than/less than or similar), is there a way to get the list?

May opensearch be used for this goal?

Thanks in advance

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