Hey Wes, Projects are indeed coming - expect an announcement sometime soon on our new frontend!
We’re not adding a new entity though, we’re renaming Streams to Projects and Branches to Models.
The new branches/models will allow infinite levels of nesting (they already do, but it’s less obvious) wich should resolve your organizational issues.
Regarding annotations disappearing, that should not be the case when updating existing objects, maybe you need to manually set an applicationId on your Grasshopper objects?
Would love to hear more about your workflow and find how to optimize it even further 