From The World of Dreams Manual

Most crafting skills have this now. This is where you click in a menu to make something, and it will keep making the same thing over and over until you run out of materials. It's not good for skillgain, but it can be good if you want to make a whole bunch of things either to use or sell. But it's not good for everything though, an example is wanting to make one set of leather armor, not 50 leather caps, Dundee put in a prompt to ask if you want to autoloop. You click yes to autoloop, and hit cancel to only just make one. Note that this will not autoloop if you have your SPEC book open, nor will you get the prompt asking if you want autoloop. It defaults to cancel. This can be handy if you are making a whole bunch of items singly, example is making a spellbook, scroll by scroll.