Changing the camera from 2D to 3D

[Sailor Muffin]

Hello!
I am working on a Hill level
And i wanna know
In a specific section of the level
How can i make that the level camera change to 3d?

 

[DylanDude]

Hello!
I am working on a Hill level
And i wanna know
In a specific section of the level
How can i make that the level camera change to 3d?

Have the player activate a Linedef Executor with Linedef Type 432.