1 of 1 people found this helpful
Create this as a calculated field and drag it to your filter shelf. It will have two options - true or false. Set it to true and you'll see only the combinations which evaluate to true
([District] = "Lynchburg" and [System] = "Primary') or ([District] = "Salem" and [System] = "Interstate")
You could also achieve this by creating a combined field on district and system then dragging that combined field to the filters and selecting / deselecting.
Thanks Tom, the calculated field worked perfectly! I even figured out how to adapt to work for all nine districts in my dataset.