So, it looks like the first time per day you get one of the fiction effects, and then your inspiration is tapped. If you take a bunch of Eclipse, though, you can use it again. Using it with a fiction effect still active (and having used a bunch of appropriate techs?) gets you the choices to Get to work, Add more ideas, or Think Harder, which all seem to remove your remaining energy of the effect. Then you can use more Eclipse to get another fiction effect, and repeat. I'd guess that Creative Hollowness probably prevents you from using the desk until it wears off.
Also, sinking 35 energy of purely Will based etheric techs with Fantastic Fiction active and then getting to work still just resulted in one incoherent writing, so if there's a way to get something coherent out of that, it's not just from sticking to a single theme.
