Are Multiple Column Key Figure Structures Possible in Query Designer?

We use Bex Web BW 7.3.1 SP7 and users are asking if it is possible to switch between multiple key figure structures as the standard bex web template provides a drop down to do so?

However, in Bex Query Designer, I don't see how to specify multiple structures in a query.  I can add a second structure that is without key figures, but that the intent is to toggle between multiple key figure structures in the same query.

Is this possible or should I consider customizing the web template to remove the drop down for the structure selction?

Thanks for your time!

Lee Lewis