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In the left panel under “Create a New Plan”, click on the Targeting tab and then “Edit” in the Audience Segments section to start viewing your segments. Click on the “Third Party Segments” tab, and you can search for your segments in the search bar by either using the inventory delivery name or the DSP ids from GoldenFish.
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If you enter in the inventory delivery name, you’ll be able to see volumes for all DSP ids associated with this segment. You can create a group by clicking on the checkmark next to the segment name where you’ll be able to see volumes between segments using the “And/Or” options.