1) create first story of your building, place a stairs and a point trigger in front of the stairs
2) create second story of your building somewhere outside your level, place a region trigger around it and place another stairs with a point trigger in front of it
3) in the "OnUseActions" property of both stairs, add a teleport action to the other stairs' point trigger
don't forget to add another AI seeder to the second story of your building and regenerate the AI grid
Last edited by Larian_JB; 28/09/17 08:21 AM.