In Performance Insights, we need a new filter created to allow us to filter by sender (the user who sends the email). This field is currently available in the Excel add-in reporting tool but not in Performance Insights. We need this option so that we can look at, and compare, metrics/results for individual users/senders on our communications team. Without this filter option, we're not able to use Performance Insights as our sole reporting tool or rely on it as the source of truth for metrics.