The basic process for setting up an interaction on the scorecard is the same as on a dashboard. Select the element on the scorecard and either use the Set Up Interactions option on the toolbar or context menu, or use the hamburger menu under a specific action on the Properties panel. For more details, please read the article on Using Interactions with Controls.
For your specific example, you will have to create a script interaction on the Click action. Please follow the article on how to Trigger different dashboards when a hierarchy is clicked for the bulk of the process. The only difference will have to be in how you define the variable values. For example, to use the friendly name of the data label replace the existing var line with:
var values = this.friendlyName;