Visual indicator in Data Center that source contributes to DataFusion

I have a few DataSets that have no cards built on them, but are actually used for DataFusions. I almost deleted one today because I forgot about the fusion, and saw 0/0 under Cards/Views. Would be great to see an icon, or see a different background color in the data center to remind me that the DataSet should NOT be deleted and is part of a fusion or flow. 

FYI here's why I have this scenario in the first place:

I have a DataSet that powers many cards, and I've taught my users to look for the name (ex Sales Report 070515) so they will know how updated the data is. However, I wanted to fuse this to some other data, and write some Beast Modes on the Fusion. 

Since Beast Mode needs the source data + column name (ex 'Sales Report 070515-Product 1') I needed to have a version of the Sales Report that did NOT get the name revised with each update, because it was breaking all my beast modes. So now I quickly upload two jobs via Workbench, of the exact same data. Once is retitled weekly and is used to build cards, and the other has 0 cards/0 views so it can more cleanly operate within the DataFusion.