Dropdown Allow a Read-Only User to Change the "Value" in the Chart

Hi, it would be incredibly useful if it were possible to allow read-only user to easily modify which metric is displayed in a chart. There could be a dropdown to allow them to select from a preconfigured menu metrics. For example, they could choose to see the SUM of sales, or change it to see the SUM of costs.

Tableau has this functionality, and it's a serious hole in Domo's read-only functionality, in my opinion: http://kb.tableau.com/articles/knowledgebase/parameterized-measure