I accepted the solution. Thanks for the reminder. Basically you must be in hybrid to have arrange. I will also add that I do not like the new work flow. It is clearly oriented for people working where all of the elements of the design have been specc's out before hand and the only thing one is doing in Fusion is building it to that spec. That simply isn't how I work, but then I am using it more creatively than production oriented. I feel like these workflow changes were made as a way to respond to competitors like Onshape, that allow you to work between assemblies and parts much, much more intuitively and where if your initial workflow idea wasn't the best choice, it is trivial. With Fusions new system of having to choose project type at the very beginning with no intuitive way to switch between project types (I did look and search) is a really bad flaw for attracting new people to the program. Especially when it defaults to the weakest (in my work flow) option: Part.
In the end, with CADWhisperer's assistance, I found I could convert project types but that had some weird unintended consequences. So I ended up redoing the whole thing from scratch because even copying sketches between project types was completely unintuitive. Basically, this has convinced me that even though I dislike it's online only nature, I will do all my designs in onShape and only use fusion for the manufacturing tab. At least onShape doesn't bring my computer to a crawl doing the simplest things.
