I was also a bit surprised that someone is making a fuss about having a setup utility. My copy of LinuxCNC has one anyway, and it's really not that difficult to follow. I think that there is a reasonable argument that if you don't understand enough to fill in the gaps, then you probably don't understand the machine too well. But, folks have different ideas. I come from a very technical background; it's clear from some of the questions posted in this forum that many people don't.