Your best way of accomplishing this would be to add a Filter Element to your board. Once you add that, you go to the Data tab and then choose the "Cross-Data-Source Filtering" options to fix this. See below.
Your best way of accomplishing this would be to add a Filter Element to your board. Once you add that, you go to the Data tab and then choose the "Cross-Data-Source Filtering" options to fix this. See below.