I’m currently in the process of reorganising all test actions and cases in ATS, as well as optimising flows by splitting actions for better reusability. In doing so, but also in general, you can quickly forget which actions are used and which aren’t. To have a clean ATS library, it would be nice to have an overview of all test actions and cases which aren’t currently in use. This would help solve either some (missing) dependencies, incorrectly linked actions or show room for improvement in general.
I currently don’t have any thought what information the view should contain. Probably a list of everything that is unused with definition of either action or test case would be sufficient.