If you have substantial and worthwhile points to make why this specific school that not have been been clearly addressed elsewhere in the secondary that it might be justified. But I would make sure that it is specific and that in someway it may connect earlier in the application (either primary or secondary).
For example, if you discussed a global health experience in your PS or MM and did not expand on that in the secondary, you could make the short Anything Else something like:
In addition to the fine medical education I would get at SCHOOL X, I am most interested in your DEPT or PROGRAM on Global Health. That had a large impact on my motivation and commitment to be a physician and I discussed at length in my primary application . (You could add a fact or two about the program but a few sentence is all)
