I've installed KSP-Interstellar and I'm enthusiastic of this beautiful mod, but I'm still far from understanding all of its complex mechanics. One of the problems I'm facing now is the excess of WasteHeat. As you can see in the screenshot I've covered my (oversized) space station with Huge Radiators but it still can't completely dissipate all the heat produced by the four "Aegletes 2" fission reactors. As far I can read on this page I'm quite low on radiators. I have 20 and that should be enough for just one "Aegletes 2" fission reactor. So, periodically, my reactors overheat and when are at 95% of the total WasteHeat capacity, they shutdown and I have to do EVA to restart them. Surprisingly enough, this happens even with just one reactor active, so I'm stuck in this endless loop. So the question is: given that there is no "shutdown" button, is there an unofficial way to shutdown fission reactors without doing EVA? And as side-question, how can I upgrade my radiators to disperse more heat?
Thank you for any help