Are you planning to add Mulch capability for USI Life Support to the waste wedge in the future? As far as I understand it, that's basically the equivalent to recyclable TAC waste, hope I'm not wrong there. Also, good find on the broken CTT integration with the EVAx. Came here to report the same thing. You can also solve it by just deleting it completely as the part is already defined in advExploration anyway. Because these parts are defined without dependencies, meaning you get them automatically when you install Universal Storage. However, you can use the oxygen, hydrogen and water in the resource converters (Alkaline Fuel Cell, etc.), I suppose that's why they're in there. Been wondering about the oxygen on the EVAx too, though.