I also was looking for this on the new Dashboard Studio. The only thing that helped was appending this to the search: ... | noop sample_ratio=10  From: https://community.splunk.com/t5/Splunk-Search/Can-sampling-for-subsearches-be-used-to-parameterize-main-search/m-p/478261/thread-id/134148 Noop Doc: https://docs.splunk.com/Documentation/Splunk/9.0.5/SearchReference/Noop ... View more