One of the biggest gaps in Magic ETL vs SQL dataflows in not being able to just run a preview of a single tile. I also wish we had the Run to Here option. For example, maybe I only want to run a series of tiles from a particular input dataset before it is joined to another dataset.

The point is that it is inefficient and frustrating being limited to previewing the entire dataflow time and time again, even after making small changes to tile logic. We all acknowledge that Magic ETL is "fast" in compared to SQL dataflows; however, there are times where I specifically choose to migrate the logic to a SQL dataflow just so I can have better testing and previewing capabilities available there that are not available in Magic ETL.