Hi Eric. First, let me just say that the overhaul of the Mosaic tool is fantastic. Great work!
I had a thought though. Now that the tool allows for easier framing by moving the frame around, why limit it to strictly generating multi-panel mosaics? I think it can also be very useful for fine positioning a single panel. But the mosaic planner will not allow for single panel jobs to be created.
With that in mind, I would propose allowing it to create single panel jobs. And also renaming the Mosaic tool to something like "Framing and Mosaics" then giving the feature a more prominent position in the scheduler as one of the key steps.
This way when a target is searched for within the scheduler, we can be sure it is framed well.