Thread:B1bl1kal/@comment-24758512-20140503054654/@comment-1682045-20140503231017

Once you clicked "Rename", it'll show you 3 sections:

1. "Rename Page": Showing the current name of the page.

2. "To new title": Changing the old/current name to something new (nickname, alias, ect.).

3. "Reason": Explaining the reason(s) for altering the name(s).

Plus you'll see a blue button "Rename Page", that's when you wanna change the name back to its original name.