Editing Linked portal (section)

===Lifts between sector portals===

You can make the floor or ceiling of a sector move from a sector group (layer) to another by using the [[Attached surface linedef types]]. Here's how to do it:
* Place the two parts of the lift as two sectors, the one below the portal and the one above the portal. Make sure the sectors have the same size, floor texture, floor height and lower textures relative to floor.
* Set the floor height of both sectors to the Z position of the portal plane. Do this even if the lift's resting position is lower or higher.
* Set up a sector portal between the two sectors.
* Attach the floor movement between the two sectors. Check the link above to see how it's done.
* To adjust the floor to the bottom or top height, you can use a special at the beginning of the level (either through an OPEN ACS script, using Boom voodoo dolls / conveyors or a trigger near the player start).