Yes, the OS supports two text selections at once, PRIMARY and SECONDARY. Quick Clip only reads the Primary selection, because what if you have a webpage selected then switch to another application and select something else then clip that selection? I could concatenate the two selections then clip them together, but I think more times than not that wouldn't be the desired effect. So as of now Quick Clip ignores Secondary. A possibility would be to sense if both primary and secondary were selected the give a prompt: "What do you want to clip? Primary | Secondary | Both". That's getting fancy, though!