Controlling Spawn Positions and Toggling Portals with Redstone

Once two custom portals are linked, you can adjust where travelers appear upon arrival and use redstone wiring to control when the portal is open for travel.

Changing the Portal Spawn Position

Because custom portals can be built in any shape or size—including irregular doorways or frames lying flat on the floor—you may want to adjust the exact arrival spot at a destination portal. You can update the spawn position directly in-game:

1. Activate and link your portal frames first.

2. Switch to an empty slot on your hotbar so your main hand is empty.

3. Hold Shift and right-click a portal block with your empty hand to change the spawn position.

4. Step through from the connected portal to verify the new arrival spot, and repeat the Shift + right-click action if you want to adjust it further.

Controlling Portals with Redstone

Leaving a portal active at all times can let wandering mobs through or leave private areas open on multiplayer worlds. Custom portals support redstone control out of the box:

1. Place a redstone signal source—such as a Lever, Button, or Redstone Dust line—connected to your portal.

2. Apply a redstone signal to disable an active portal and stop incoming or outgoing travel.

3. Apply a redstone signal again to re-enable the portal whenever you are ready to restore the link.