Yes, but i actually wanted to load multiple forms not make some contents invisible since they are hugely different form one another

The probleme is the form view are load with the loading of the action. You may use the fields_view_get to choose the good view. But you must reload the action when your state changed. If you click on the button it is easy, but if your are already on the view and another user change the state, your view can be reloaded

Only one user can change the state at a time so, that isn't a problem. but what happens when the state changes and the user returns or some other users tries to view it, do i use the fields_view_get for the form view or the tree view?