You can use any (warp) portal structure found in any of your scripts located in your /warps folder.
For example, this is mine from my custom mall: http://mysterious-pr...nk/npc/Mall.txt
// Warps to Mall and Out
fayon,57,123,0 warp tmallin 2,2,mal_in02,161,60
mal_in02,158,60,0 warp tmallout 2,2,fayon,57,120
But for what you want,
prontera,156,195,0 warp tmallin 2,2,new_1-2,23,187