By clicking on the dots in the Feature exploer you van view the sample preview. The same should apply when clicking rows in the Test Data table. Ideally it should also highlight the dots in the Feature explorer.
Yeah, the reason why we haven’t done this is that there’s not a single item in feature explorer that maps to a single data item (e.g. anything where you have windowing on the sample), but I’ve added a ticket to investigate how we can improve here.