Ich habe eine Rückmeldung zu dieser Inventarerweiterungs-Quest bekommen die ich hier Teilen will weil sie geholfen hat:

I understand that you are unsure how to start the quest [Processing] Trent Worker Experience.
To begin this quest, you need to have the knowledge "Chopping: Beginner" (Hacken: Anfänger).

To acquire this knowledge, you must complete the following quests:
- [Processing] Learning Higher Processing Skills (Größere Verarbeitungs-Talent erlernen) - you can get this quest from NPC Fiby in Heidel.
-[Processing] Working the Ash Tree (Die Esche bearbeiten) - you can get this quest from NPC Lebyos in Heidel after accepting the quest mentioned above.
Once you have completed these quests and gained the required knowledge, you should be able to start the [Processing] Trent Worker Experience quest.