Just want to give an example on this. If you have a Home page with a centralized login and you want all users to login from Home page, when they tried to open another page (e.g. Dashboard page), they will be redirected to your Home page.
Below is a use case.
You have 3 web pages:
1. Dashboard page (dashboard.html). This has 5 DataPages deployed in it. There will be 5 login forms displayed on it.
2. Profile page (myprofile.html). This has 2 DataPages deployed in it.
3. Welcome page (home.html). This has only one DataPage deployed in it.