How to Open/Launch Eden editor ?

[Pugwis]

This question may look stupid to you, but i can't find how to use Eden Editor, i have tried everywhere from in game, solo, multiplayer, trining and all that thing, but there are no possibility to use Eden editor.
It will be much appreciated if someone can tell me how to open it, the path, or eventually if i need to download some stuff or anything, thank you.

[fuzzel.]

Editor -> choose map -> click on 3D-Editor -> profit