Can you display a panel after clicking on a single-value panel?

[buttsurfer]

I have a single-value panel. Is it possible to display another panel only after clicking on the single-value one?

[buttsurfer · Accepted solution]

All needed to do is to add 

        <drilldown>
            <set token="show_req">true</set>
        </drilldown>

and then add the dependency.