Thank you for sharing! This seems like something I can incorporate easily with any hen or pullet that cause concern.
I find this to be the most low stress way to handle it, as there's no forcing the bird to take a tablet, and many birds are plenty happy to have a mini meal undisturbed by the others. I use my brooder for isolating the bird in question since it sits in the run, but any sort of confined or separate area will work.