Need help with Portals/Sectors.

[Ginev]

Can someone explain me step by step how to use the Portals/Sectors in battlefront 2 Zero Editor.Im trying for 2 days with no luck.I know that i need 2 sectors and 1 portal that connect them but nothing happening.What i want is when i go to 1 sector the other to be invisible (game dont render the objects inside the sector making better performance for the map).

Help!