Thanks!
The "tower of elevators" has doors arranged as they are on the map, if you came from the left and want to go up, you need to turn to the left when you're entering the place (best to draw it on a piece of paper to grasp it) and check all floors where the doors are. For the standard rules, there is no guidance.
I just realised that I could add a door direction device on the back of doors! Then the flashing icons would point to where a given door leads to. Could be useful in other planned zones.