Alright here a simple thing to demonstrate what i am asking
This is the application for example : https://www.facebook.com/appcenter/monstermmorpg
This the page for this application as you can see there is a native play button :
https://www.facebook.com/MonsterMMORPG
Now it is true that i own both but i can not remember how i did it
Now i am starting a new application
I already composed the new application but i can't find how i was composing a binded page for that application
Ty for the answers
Go to App Details and click Create Page down at the App Page.