Hi @rwills2 ,
Did you have a chance to check out an answer? If it worked, please resolve this post by approving it! If your problem is still not solved, keep us updated so that someone else can help you.
Thanks for posting!
@rwills2 depending on your use case and comfort level with Splunk Dashboard you can pick and choose one of the following options
1) Image Overlay for Data Flow. You can get Splunk Dashboard Examples App which has basic example for this.
2) Status Indicator Custom Visualization with Trellis layout for Data flow. Status Indicator Custom Visualization App is available on Splunkbase.
3) Sankey Diagram - Custom Visualization
4) Parallel Coordinates Custom Visualization
5) Network Topology Custom Visualization
6) Force Directed Graph Custom Visualization
7) Graph Vis
8) Status Matrix Custom Viz