Hi! Ep 5.4 Game.exe doesn't have the function that allows you to see the "Mini-map aka Dungeons" by default. To see them you should make modifications to game.exe, this is possible and is released by Alvx9 but still it has a some issue, the mini map with the cursor icon of in game position doesn't match and you still don't know where you are, so you have to make more modifications. If you search in github you can find it i believe
I hope i understand you well xD, if you are asking "how portals work in dungeon" like cryptic throne you have the OS Guide or Shaiya Wikis in google