@tylerlamparter - Feel free to direct me if these posts should be going somewhere else (perhaps Product Feedback?), but I had one other "nice to have" that would be beneficial I think for a lot of us that use branching (and might not be that heavy of a lift on the Celigo side).
It would be great to have some visual indicator of the final "landing spot" for a mock record. In the screenshot below I have three imports and it would be nice to see which one is holding the record from the Mock Output I have. This just saves time from the end user needing to click into each one to see where the mock output record is (this is especially useful in scenarios where you haven't worked on the flow in a while). Just some sort of indicator on the step that is holding the Mock Output record!