On a very different note, and also not (originally) graphic, the description reminded me of "Spectre"Spectrum by Sergey Lukyanenko. There, people can teleport to various other worlds, and the protagonist is a specialist in pulling lost tourists out. One girl managed to distribute herself to multiple worlds at once...
Yet another very different example was from Strugatsky brothers' brilliant series on "NIICHAVO" institute of magic in service of the Soviet public and industry, where among other things, experienced employees could "dupe" themselves into usually short-lived entities capable of keeping up with one task, such as following up on an experiment or sitting at a meeting (many of which were only attended and led by such dupes). That is something I, and many of my acquaintances, really miss in real life ;)
