This workbook has two data sources. One is a log of activities and one is role data for the users in the activity log. The goal is to select a user and then compare that user's metrics to the metrics of the role that the user belongs to. Is this possible? I have worked this out in the past by including another workbook on the dashboard that indicates the selected user's role so that a person could manually set the role filter. Obviously this is not ideal.
If you're still looking for help on this question, I would consider creating a case at customer.tableau.com. I tried playing with the workbook but was unable to create the actions you wanted.