Dropdowns for source and campaign name

With all of your skills in preparing data and visualizing data from the tables your marketing agency uses, you have now been tasked with building an easy-to-understand dashboard.

The marketing manager at your agency would like any dashboard you create to be able to be filtered by both the Source and the Campaign Name. The first step you must take is to add these as dropdowns to your sheet, to be used as filters as the dashboard progresses.