How do teleporters work?

[Buckermann]

I created a simple map, dropped two teleporter, grouped them together in a TeleporterShrine group and tested the map. I can click on the teleporter and the teleporter selection map comes up, but I can't choose a destination point.
While I had hopped that this is enough to make them work, I was sure it ain't that easy.
I guess there are steps similiar to the quest creation process needed to make them appear on the teleport map.
Anybody knows more about this (and is willing to share his/her knowledge)?

[Quasimotocar]

Haven't tried this but I was thinking...the portals in the game need to have at least two you've already visited in order to work. Did you try visiting the second shrine before teleporting?

Quasimotocar

[Buckermann]

Yes.
I activated the two teleporter, tried to use one, and tried to use my personel portal. No luck so far.

[Buckermann]

I don't want to be anoying, but without teleporter most larger maps will be hard to play.
So, can I get a answer from one of the devs? Please?