As a true (admittedly lazy) Stonehearth Engineer, I've expanded past its horizons, but never by much. I believe I was the first to make arches with the beginning of the slab tool, I made column templates with a bit of save editing before slabs came in those colors, and I'm making lines of fences and other useful templates with all the game's tricks right now.

I wrote a few stories, mostly centered on SH Engineers, back in the day. PM me if you want more.