See image http://www.powerpivotpro.com/wp-content/uploads/2015/08/PQ_DiagramFlow.png - that is a Power Query flow for an actual client project that I built using Power Point and maintain manually as the Queries change. Each box represents a distinct query in Power Query. It would be SUPER useful if Power Query provided an automatic Diagram View, where I could examine how my different queries are connected together and how they flow. I don't think I am the only one building queries like this (modular, inter connected queries). This helps me understand the query structure if I step into the project after a break - or someone else takes over for me. I would imagine others out there have even more complicated structures than the one sample that I shared. An automatic Diagram View would help us all. Also if I peek over to the BI Pros world of SSIS, that has a very visual diagram flow. So I feel a "PQ Diagram View" both makes sense and is much needed.