A template set like that could be made easily enough. Slot1 could even be made larger than the rest. I just haven’t made it.
There are literally 100s of different design layouts that could be made for it.
It was actually on my to do list to make some more templates sets to sell on the site. I just haven’t got around to it.
I hope to have a template layout generator done by this spring. That will allow people to more easily make their own template sets too.