dune
I agree. I think the unpatience comes from the fact that they are saying it will be implemented since at least January now.
My personal guess is that they do more other software features or even products in parallel and this one does not have that much priority.
Getting this priority changed will be almost impossible. So patience is the only thing left.
The hardcore way would be: Sell S50 and get another product that already has the mosaic mode implemented.
The mediumcore (:-D) way would be: make the single shots by yourself and merge them later. Or use third-party software like this one: https://github.com/smart-underworld/seestar_alp
Personally I have not tried it yet, but for getting the connection. I'm waiting for better weather currently to make a first try on Andromeda with this software.
But my personal favourite would be a built in solution as I'm not a bit fan of having 23423 extra tools and software when not really needed.