Well here's what I did: I created a "custom" entity using a plane black tile found in "Static Objects". Using the editor, I made a replica that acted as a level door and placed it under Entities>Technical. However, despite having a playerstartarea for my 2nd level, and despite doing the necessary scripting to connect the two, I cannot interact with the black tile level door in level 1. Any thoughts? (could it be because I placed the entity in "technical" rather than "doors"?)
Thank you guys for all the feedback, I really appreciate it!