Ha ha, sorry about that Iminei. I downloaded the Christmas SAS, because I loved the central pattern, and also because whenever I clicked the download link I was taken to that pattern in Craftsy. As far as I can see, the actual construction is the same and there is an instructional video (very short) which tells you how to do the double SAS as well. You can also get colouring sheets in case you want to play around with different colourways and there are illustrations of some different ones.
This is how far I've got so far, lots to do yet.
I'm doing it in sections to avoid wrestling a whole quilt through my quite small machine and it seems to be working ok.