hycari - For now, can you rename the tab link back to "Edit Customer"? The name is hardcoded, so when you rename it, you need to go into all the actions that reference the tab link, and customize the changes.
You can do this, as many others have, but that's obviously a lot of work, and it really shouldn't be that hard. We need to make this easier for you.
I checked with the developers and they have a solution to this in the works. It'll make it to the next big update to Method, but that's likely 3 weeks from going live. So for now, life is easier if you just rename it back to Edit Customer. Then, after the next big update, you can make it "Students" and everything should just work.
Sound good?
Paul