After analyzing several hundred more samples, I thought of another feature that I feel would be very useful: I'd like to be able to "mow the grass", removing any data points that are exceptionally above average. For one thing, it would eliminate problems with the graph scaling too much on very active stars. The main benefit, though, is that it would eliminate more than a few false positives, where an otherwise unremarkable wiggle in the graph appears much more significant than it really is because it's surrounded by a pair of solar flares. It's also possible that such a data culling feature would make it harder to spot something, but knowing when to use it will be up to the analyst. More tools can't hurt, right?
EDIT: I just had a sample (Not a gold standard grading sample) with a period of 0.475 days. Since the UI only allows periods as low as 0.5, I had to enter it as two different orbits. I'm sure it'll still get examined by Geneva, so op success, but it's a bit annoying.